Haseo not knowing about Awakening

Noticed this now this time around in the beginning sequence.

This just strikes me as a bit odd - sure, it wasn't in the Asta/IYOTEN tutorial, but this is after ROOTS, after he created a legacy and reached level 133 - how can he not know about that?

Was it a new feature or something? Or is it supposed to be a reference to the fact that he prefers to solo and be a lone wolf?

Seems to be even further doubled down later when Alkaid's team uses Beast Awakening (which you HAVE) and he goes "what kind of attack was that?!".

But yeah how does the legendary Terror of Death not know about this mechanic?