I think it would make sense that changing the pitch of the first note in a series of tied notes also changes the following notes. More often than not I'd like to edit the pitch of an entire sustained note, and not just the first division of that note. For instance, if I have a sequence that contains a C that is held over 4 note divisions, like this:
C-C-C-C
Changing the first pitch value to, say E, should change the entire sustained note, like this:
E-E-E-E
Instead, the way it currently works produces this result:
E-C-C-C