I don't think I agree with the tweet...
I get what they're saying, but Pittsburgh added higher end talent. It was an ill-fated venture, but Gonchar, Palffy, and Recchi were all legit talents. Part of the problem was Palffy retired mid-season, as did Mario. LeClair was pretty washed, but no one knew that due to the lockout, and he still scored like 50 points due to a later season surge (iirc).
Hall feels like he's in the same bucket as the above guys, but overpaying both Foligno and Perry feels very stale. Just my $0.02.
Your opinion just strengthens the argument that Colorado needs to move out salary (in my suggestion Girard).
I'm not advocating for O'Connor as a third liner, but the team will be extremely hard pressed to find an upgrade with only ~$7M in available funds to be spread out over 6 players (again, assuming Olofsson and MacDermid are not penciled into everyday roles).