Depends upon the context. Nothing against doctrine to discuss the possibility of part-time priesthood or removing the vow of chastity from certain orders of the priesthood. Female priesthood is walking a thinner line, but I see nothing wrong with discussing the matter in context - especially given the recent publicity to certain “progressive” elements of the Church.
If your priest was suggesting that the laity should demand the changes, then I think the priest was leading his parish astray by raising false expectations of change. If he was simply raising the topic in honesty and openness - to address concerns voiced from the pews - that is another matter. So, like I said, it’s all about the context IMHO.
Peace and Charity,