Unfortunately, for the most part, Nintendo has been quite dismissive of Animal Crossing Bells players who would need further options compared to base configurations. I really don't know if they've been directly asked about this before, though I believe they would dodge the question and state something really Nintendo-y like"Our matches are for everyone!" > . <
That I 100% believe that no single player game ought to have any designs where there's a single reliance on color or audio with no way to include in additional cues such as subtitles or change the key color scheme for your game and multiplayer games should at least have the capability to change color schemes for names/icons where they could be an issue.
I figure they get that picture since they're family friendly and appeal to all ages. However, making it even more significant that their games are accessible. Because think of that disabled 5 year old who is already being taught this hobby isn't for buy Animal Crossing Items them while they see family and friends enjoy it easily.