A calendrical sea change

A significant change—not much remarked on, from what I can tell—is the sea change in how Protestant churches with nondescript liturgical traditions treat the church year. In my youth, a Baptist or Presbyterian church (say) would totally ignore the Christian calendar, if not regard it with outright suspicion as a vestige of Roman Catholicism. Now, many such churches make much of the Christian calendar, even though they lack the liturgical resources for that calendar to be reflected in week-by-week worship. I am not sure how to explain the change except that fashions change, there has been a decline in anticatholicism, and perhaps the Revised Common Lectionary and other such ecumenical efforts has had an effect.