Fixing bugs makes bugs
Ever noticed how sometimes when a game gets patched to fix a problem, other problems arise? I realised in testing that my AI was really dumb, running away when it shouldn't. I had simplified the AI for testing purposes and forgot to return it to what it should have been, which is sadly what can happen. In tracking down a bug, you disable bits of code, and change bits of code, until you find the problem and fix it, potentially leaving a wake of changes that need to be redressed.
So apologies for early players who have found the AI lacking! The ships are far less cowardly now and far more focussed on your destruction.