How important is it? (Cyrillic, Ukrainian, localisation)

Hello. Came across this older thread where there is a discussion about how to localise the Ukrainian En-cy and automatically turn it from a glyph that resembles an H into one that resembles a N.
I’m new with Cyrillic, so I’m wandering how important is it to add this particular substitution to a font, since it seems that the En-cy that looks like a latin N is not really used in Ukrainian.
(See here for example:

1 Like