We can ignore the problem, but that's no excuse to not have it fixed.
AI values ALL ships too cheaply. Especially though, mercs, and administrator ships, but all warships are way too cheap.
Buying an administrator ship from the AI should require you to have a free administrator of your own, and deduct it from your total while the AI gets it back. This completely cripples the AI, and the best way to beat the AI right now is to buy all of its ships whenever you have a chance. It leaves it with few colonies and no starbases. Not to mention no military.
Exact values may have to be experimented with, but I feel like buying a constructor or colony ship from the AI is worth an awful lot of credits. That colony ship may mean the difference between one of you having a precursor world.
Also, I don't know why the devs think the AI performs well at constructing starbases. It's not even a passable job, they always have dormant constructors stacked around, and ignore obvious places for starbases, like relics. I admit, not all the time this behavior, but way too often. And this is at Incredible and godlike difficulties, not easy and normal.
We can, and will, ignore the gamebreaking exploit, but that's absolutely no reason to not get it fixed.