I thought Bonk/Perreault were a wash at the time, Bonk was the classic defensive defenseman with mobility and a frame that would fill out. Perreault was a scorer who lacked the high IQ of Benson.
"A prototypical shutdown defenceman, Bonk safeguards his team by backtracking ahead of offensive turnovers, blocks access to the defensive zone, forces opponents to dump the puck around him, and then seals the puck from them on the back wall. He pushes attackers wide in the defensive zone and scans the ice behind him to stop backdoor plays."
-EliteProspects 2023 NHL Draft Guide
Given his offensive outbreak (I don't overvalue his PP production, his ES production has also doubled in his D+1 season), he'd probably be redrafted in the top 20. We'll see if his recent burst is the new normal (10g 11-10 21 +14) or just a SSS.
Perreault is an undersized playmaker with average speed but very good skill. He's having a great freshman season, playing with two other high draft picks, but it still remains to be seen how his skill set will translate to the NHL. He may end up one of those high offense, defensive liability types.
I'd say both the Flyers and Rangers are happy with the players they picked, Flyers have a number of undersized offensively skilled prospects at wing (Michkov, Barkey, Brink, Gendron, Ciernak) and needed a D-man and got one with untapped upside, Rangers got what looked like a bargain.