To ask what you would think here?

Relative is a nanny. She disclosed a chronic illness to her employers.
This week they said they were putting the kids into a breakfast club for the morning and did not give an explanation as to why. Relative normally covers before school and after school.
Aibu to say they are subtly trying to get rid of her and find a cheaper childcare option?
She has supported them through a lot this year and has run herself ragged helping them.