I hear you.
I also think this is not a critical problem per se.
It just adds up, when UI access and placement of things around the annotation we are discussing here intermingles w/ other potential sources of confusion.
But agreed, other parts like occluded/indirect access to creating aside-annotations and non-symmetric relationships (distribution over many different UI parts) is much more relevant for UX than the double naming per se.
(Though there is ample testomony in the forums that it is a regular source for confusion/opaqueness to non-power users - see for example here)