No. You are right that it would lead to less 3-point attempts and fewer made. Before the 3-point line, a team that could score 60 points was considered a high powered offense. There were plenty of 40 point games too. Way too many. As Arksfan noted, you had a bunch of tall guys standing around the basket beating each other up while the guards were off somewhere eating popcorn.

Sure, some teams shoot too many 3s but it can be a great equalizer. Especially for a smaller school whose big guy is 6'6"

Prior to the 3, it was easier to slow the game down. Dean Smith used to go to the 4-corners stall 5 minutes into the game. If you are a decent 3-point team, they can't do that.