To be fair, it sounds like the PO is only "doing his job", some one has stopped attending meetings and he is checking in to see what's going on. I think we have heard of a lot of cases where people stop showing up and no one ever called or checked on them. It sounds like he was at least trying to be tactful about it.
But yes at some point they will likely try to talk yo your friend face to face, and if they find out the real reason she stopped attending, then yes there could be trouble.
No Apologies