Maybe. Truthfully, I disagree with cruisers in general, and If i were the GTVA, I would shift production of advanced fighter craft into overdrive and drown the UEF in said fighters, which I feel would be cheaper and more cost effective in the long run, given the nature of combat in FS, and in WiH especially.
But, I am not the GTVA, I'm just a dude who plays the game. And besides, the Cretheus would have an important role in combat with the Shivans. Every cruiser besides the Aeolus has been a failure in that regard, though I'm still not sure what to think of the Hyperion. It will be interesting the current GTVA fights a total war with the Shivans, assuming that scenario does end up coming to pass.