It's hard to have an opinion that they paid too much when you arent involved in the conversations on what the ask is and what Barrie/Brampton, etc. are offering for the same player.
It's also less than a player like Barlow normally goes for in any other year. WJ calibre 1st round picks usually go for rookie 1st rounder +2/3 2nd+2/3 3rds for half a season of the player. The Gens paid less than that for a full season of the player.
The market was set by Rehkopf who went for 3x2nd, 3x3rd, 3x4th.
So if you're comparing the trades, the Gens basically turned Delisle+Bedkowski into 2nd, 3rd, 3x4th. That makes sense, that's probably roughly what those 2 are worth at this point in their careers. So lines up almost exactly with the Rehkopf price.