Perhaps she didn't like/do well with the way the message is delivered. MM would often be pretty demonstrative with Dani in on-court instructions.
Not Izzo-like, but getting the point across. Some players are fine with that. Others, not so much. Who knows?

Or, as others have suggested, there could be something else to this. But she seemed to like the major, liked the spiritual nature of ND.

Whatever led to this must've been brewing over the lid, because there were some good chances for Dani to help be a major part of the meal next year.

Whew...times, they are a changing.

I also noticed how MM chewed into Danielle on the court and she would
become quite tentative in her play. Danielle never seemed to respond
with better play.