This is something that's been bugging me for a long long time.
While SMN is a direct upgrade of ACN in every sense much like with all the other jobs, SCH has always been standing a bit to the side of those two, not just in abilities of the summons, but also aesthetically.

It's somewhat weird to see that wind animation of Garuda and earth animation of Titan are used for summoning Eos and Selene, representing the dawn and the moon respectively.

tl;dr Yoshida give scholars fitting animations please or RIOT