devtrackers.gg
A couple of others have already commented our thoughts.
The animation re-use here and the VFX being different for the incantations is very intentional by design.
The idea of an 'invocation' is that the entity/power in which you're invoking would change, therefore the VFX, but the actual animation of invoking something would stay the same.
The commanding is basic, because the focus is on the conjured spirit itself.