How *unappealing* do you predict straight male romance options will be in DA4?

Didn't know about that mod, but from what' I've seen on YT it doesn't look good and I don't like this character enough to ignore that.
Bi-Dorian is still Dorian, you shouldnt mind what others think and enjoy romancing him with a female inq, especially if the romancing part of the games is what make you replay.
"He's yours now".

It doesn't change his dialogue options nor his quest.
He's still Dorian, like Jaal is still Jaal.

Take away Anders' magic. And don't change the dialogue...

Well, to me it's more like give Anders an additional bow skill tree to develop if you feel like it. Nothing is taken away, but it visibly not canon.

Mods allow the player to enjoy the game the way they want. In the bi-mod case, it doesn't change the dialogues and quests. You still know what the character is supposed to be. Bi-Dorian is still Dorian, Bi-Cullen is still Cullen.

You can have your own little fantasy, or simply avoid to play the whole game as the opposite sex just for one romance. Doesn't hurt anyone.

His choices are limited not only to nobility, but to nobility with extremely strong magic talent, because Dorian himself for better or worse is a maverick. For example, Felix, even if he were available, will not qualify, as he is a weak mage.

Blood magic or whatever magic would be necessary to merge the bloodlines, because Pavus Sr. does not simply insist on Dorian' getting hitched for the sake of having someone to look after him in his dotage, he insists on Dorian being a breeder. And from the father's character, probably a better breeder than himself.

Dorian actually swears when he says "your legacy". He actively does not want to perpetuate Pavus' line and Tevinter way of going about marriage.

The story of the amulet also plays into that narrative, and later in the game - his departure for Tevinter to take his father's place.

Overall, I think his story has many layers of complexity, more than the other characters'. he is truly a fascinating man.

Right, because there is no male noble that Dorian would be interested in. The game doesn't say it, but I got the feeling that the Rilienus guy Cole mentions was a noble.

While it's true that Dorian's situation is more complicated than just not wanting to get married because he's gay, the fact is that his inability to fall in love with a woman is the reason Halward felt he had to resort to blood magic.

Really, the excuses you're coming up with to justify your fantasy that Dorian could fall in love with a woman are insane.

1- The passage in question ("I was joking") was pasted after two images of Gaider's posts stating how dwarfs were hairy and "ew". Context would imply (by the person constructing the post) that Gaider was referring to those. He then states that those comments (where he went ew) were posted after people took his explanation out of context. His explanation was "the Alastair scene was done with a dwarf made to look like a young girl [...] and that had left me a little traumatised". An explanation he later clarified and was still ignored, and so he had given up and resorted to jokes. 

This may or may not have been how the original conversation went but it's how the post on this forum is constructed. Nowhere does it state in the passage you mentioned that the explanation of being traumatised was a joke, and you're the second person to posit a misinterpretation of the passage as it's written. Of course if there's another source which states otherwise then please share it, but the source you're using doesn't say what you want it to say.

1 - Nobody in this thread said he hated dwarf romances, people said he was against dwarf romances. He said he wanted to try a dwarf romance, Dwarf on dwarf most likely

2 - The points aren't really noteworthy anyway. There's always limited companion spots, it's not something unique when dispelling dwarf romances anymore than qunari romances. Whether there has been deliberately no dwarf romances is the question

Only as long as it's dwarf-dwarf romance because he's got the idea that "female dwarfs look like young girls" stuck in his head. And because having only dwarf-dwarf romance (involving the protagonist) is a big fat waste of resources ...

What you do with your game is your business, but why you feel the need to justify something like this to a demographic for whom it is a very touchy subject is beyond me.