Should Unsynced content give rewards?

[Zojha]

7 primal fights that are really fun and a nice challenge are never run synced, because hey, you get the same reward for doing it unsynced.

How fun can they be if people don't bother with them without an extra reward...?

If people aren't doing something, it's because they don't enjoy doing it. You don't need rewards for something you enjoy doing because the enjoyment you get just from doing it is an intrinsic reward itself.

Therefore, it is safe to say that the majority of people does not consider these fights "fun".