Absolutely not.
Without Kessel, we'd get cratered on right defense because there's literally nobody else other than him, Parayko, and Faulk - and Faulk was terrible last year. Skinner and Biakabatuka are AHL bodies. Jiricek and McIsaac are nowhere close to helping us, since we literally just drafted them. Johannesson was signed to replace Rosen as a potential call-up for injuries, but he's very much a wild card because we don't know what we have in him. As for lefties playing the right side, Perunovich is always hurt; we're always waiting for the other shoe to drop with him. Tucker is not NHL caliber with his skating. And now that Krug is on LTIR for possibly the entire year, we literally need all the help we can get with defense, which means that Kessel is simply not an option to be moved, especially since he's reaching his prime.
Toropchenko is the kind of player you hope to get and dream about getting in the later rounds. A huge, physical winger that can forecheck with the best of them, provide a bit of offense, and be fantastic on the penalty kill - and he's still getting to his prime. Would you prefer him on the fourth line? Absolutely, but he can play up and not skip a beat.
That third-round pick, as much as it may seem meaningless, is the second-highest pick in this year's draft, since we traded our second to get Hayes off the team. It's too valuable to just throw in as a bonus to this deal. If we're throwing in a draft pick, it's to get a younger player - most likely a defenseman - who can fit with our core.
And all that for Jean-Gabriel Pageau? A thirty-one-year-old bottom six center who would not solve the issues on this team (secondary scoring and productive defense)? Whom we already traded for Faksa and Texier to have something similar?
Again, absolutely not. Like other Blues fans have stated, at this point, regarding what our needs are and our timeline, this makes absolutely no sense for the Blues to take, and I wouldn't even trade Kessel or Toropchenko for him straight up.