Yes, I have heard similar things. At my grandparents’ parish, the priest did what you describe as well as plastered over some of the stained glass windows. Other windows literally went out in the trash (they were “rescued” by a local funeral home and are still there). Funny thing, in the last decade or so , what was plastered over has been uncovered and a local artist volunteered his services to restore the portraits of the evangelists that were painted over.
I really appreciate hearing from people, especially priests, who have lived with both rites. It’s easy for me to have an idealized view of the past since I grew up just after the reforms, but I think a lot of the “silliness” and abuses were reactions to other problems that were present during the “good old traditional times” so to speak.
I think you make a good point that we shouldn’t have an “us-vs-them” mentality in the liturgy argument and advocates of the older rite do no one any favors by accusing others of ill will.