Travel’s all kind of relative, if you ride, say a Mojo HG with 160mm of quality travel, it doesn’t feel like a big bike- pedals seriously well, very controlled etc. No reason the YT couldn’t do the same. So if they could combine that with (sorry Ibis) better geometry there’s no reason such a big bike couldn’t work imo.
Can’t say I’ve ever ridden my 160mm bike and thought “needs more travel” except for full-on downhill. But if it can wear the fork without significant drawback, why not?