Brad Richards, Nieuwendyk, Jeff Carter, Mike Richards who aren't PPG players but I doubt Backstrom is a PPG player without Ovechkin to feed the puck to. Plenty of wingers also got traded and moved around like Hossa, Whitney, Gaborik, Kessel, St. Louis, Jagr, Heatley.
I would hardly call Clarkson a PWF, he's 6'1. You could call someone like Dorsett a PWF then or Clutterbuck. Kassian is hardly a NHL player, he just got scratched against the Rangers. Foligno is 6 feet? He doesn't play like a PWF. Simmonds and Kassian weren't in the prime of their career when they got traded, that's the difference between my comparisons and yours. Alright I'll give you Ladd though but wasn't that for cap reasons?
They traded Ladd and Byfuglien for cap reasons, Kane, Toews and Keith just signed extensions during the season then in the summer traded Ladd and Byfuglien. Ladd, Toews, Keith vs Ladd and Byfuglien isn't comparable to Lucic vs Backstrom.