True, but I will set some nuances on it :
Gear means nothing as soon as a next tier arrives or an expansion launches. Gear gets replaced so fast it is most of the time not worth much.
Mounts on the other side is something more permanent, and will stay usable in a next tier or expansion.
It is the reason I liked it when they added a dragon transformation to the legendary staff, it will make the staff usable in future expansions (instead of collecting dust in your inventory).
(It is also the reason why I still hope they add a mount to the legendary dagger set
)
As for LFR not getting a mount: I don’t know. On one hand it saves me time and frustration to get that mount too (mount collector here) and on the other hand it would be nice to give other people something nice too.
But to be fair, since the easiness of the LFR dungeons, I think it is better to add a faction to the dungeon, and let people grind their rep for it, and buy a mount with that rep. At least it would give everyone a chance, and not just the few lucky ones.
(that is in case you were not referring to having a 100% drop of the last boss in LFR too)