It sounds like something my mother would write to me. Yes it is very sad that these people are conditioned to measure spirituality based on the number of meetings attended and the number of hours written on a small piece of paper.
The religion also shames parents of ones who fall away or choose to do less for the religion. This is perhaps why your mom is acting this way. She is starting to feel the shame and is projecting it on you. Shit flows downhill!