Meh. I've made my opinion known earlier in the thread. All other things being equal, a flying mount would be better than a ground one, sure. But ultimately this is a trophy mount, so the ultimate goal for it is to be
cool. I'd much, much rather have an awesome ground mount than a flying one which is a tired recolor. I have plenty of mounts to choose from, so I'd rather use the trophy half the time than never use it at all because it doesn't reach the bar (besides, if it doesn't have a proper walking animation, I wouldn't use it in early Shadowlands anyway, so that would be half the time as a flier too).
And the thing is, there are few remaining unused flying mounts that would be worthy of a collecting achievement. Even fewer that would be even close to the same level of coolness as the ground mounts mentioned above (the
unused chimera might be the only one). Trust me,
I checked.