That was the consensus back in the late 90’s. I can’t say if it was/is true.
Probably like someone said earlier, it was a smaller PR when compared to 1984 Topps and Fleer.
I traded my factory sealed set (the box wasn’t sealed but the cards were sealed in packs of approx. 60) for a 1973 Topps rookie card of Ron Cey- and two other guys, one Padres and one Phillies player.
At the time, both the set and the card were high B——tt listed for $330.
25+ years later, I don’t know if I made a good trade or not.