Will your child be allowed to attend for the pro day?
The Owner may you as a parent that is rocking the boat as you are one that has noticed the program has gone down in quality and the timing of the lack of quality with her child moving away from the daycare.
you say you like the teachers and the location so if it suits you for now and your child is happy that is one point to consider .
The way I see it people lie when they feel cornered and you say the owner does not like confrontation so I think it is for this reason she lied.

you need to ask yourself is it more important that you confront this person for lying or look at your child and see if she is happy at he daycare and has friends there and you can trust the teachers rather then rocking your child's boat over a lie that was made in haste by the owner and not by your child's teacher . So I would agree with your husband and go slow on this.