@Willie - if you don't have anything constructive to say then don't fill the forum with garbage, it's really getting a bit tiresome. Adding a smiley face to your post doesn't make it humorous or any less annoying. In particular in this case, the post is in in the Support area where we want it taken seriously.
This is not working as designed, Frogboy stated some time ago that the 5 turn limit was added as the UI level and he hadn't had a chance to apply it to the AI. There has been no indication from anyone at Stardock that this is how it's supposed to be, ie. to give the AI player an advantage.
Frankly, this is a really annoying issue/bug. Just search the forums and you'll see it's been pointed out before.