The Helius clusters-elephant in the room- possible reason for andromeda initiative

One topic I've not seen discussed by anyone on youtube or the forums is the helius clusters elephant in the room. I've heard Minius GC comment on it but hasn't gone too much depth into it. 
The supermassive black hole.  Don't you think its odd that the andromeda initiative was sent to a region proximal to a SM black hole? Usually they are found in the centre of galaxies and it could be a small micro galaxy that merged with andromeda but I'm not sure about that.

In the ME universe, within the remnant vaults, peebe pretty much confirms that some of these vaults act like gravity wells. It could mean that the remnant mastered gravity with their technology. Now if the remnant were as advanced or more advanced than the Leviathans, it is theoretically possible they could have aritifically created that singularity. 
Also we're all assuming it is a black hole. It could possibly also be a wormhole which we have never seen in real life in our universe but mathematics states that wormholes create tunnels through space time, getting around the need for mass relays. If the andromeda initative sensors detected the formation of multiple SM blackholes or wormholes across the andromeda galaxy, one could hypothesise that they were being artifically created because that is not a natural occurrence. 

And I would say someone would like to get their hands on that technology, especially if you coud use a wormhole to connect the MW to the aondromeda galaxies and go home. Some of the MW species live up to 1000 years, so it could be done in someones lifetime. 

So perhaps the blackhole or wormhole is the remnant version of a masss relay. And perhaps you need to be technologically advanced to traverse it without being torn apart. This allows the remnant to traverse the galaxy but isolates lesser species with more primitive technoology such as those in the helius cluster. Thought?