I think it has more to do with the fact, that they're "generalizing" it for ALL D&D - not just Dragonlance.

So you need to account for the MANY other Dragons in D&D 5e right now (especially introduced in Fizban's book).

It could be, we may (which I think would be ideal) the Draconians with their Dragonlance names (Sivak, Baaz, Kapal, Bozak, and Autak) in the Dragonlance book, doing more in line with Dragonlance lore.

But in the end, if they don't (and it seems like it could cause confusion to some) I am still OK with it.