My main problem with GT is not the lack of a replay feature (even though it would be great to have) but that the designers are doing everything they can to prevent you from taking direct control of your units, because they keep insisting that you simply don't need to - but that you do in fact need to.
It's like buying a self-driving car without a steering wheel, and then crashing into a tree because it's not really totally self-driving after all. Only almost.