What is incorrect? You discount Matthews as a player based on his inability to elevate his game in the playoffs and don't seem to care at all what he does during the regular season.
I point out that it seems hypocritical because Draistail completely disappeared in the Stanley Cup finals but apparently that shouldn't be mentioned regarding where he ranks as a player.
Also, if you haven't looked it up as of yet, what would you guess Matthews playoffs numbers look like? I bet they aren't as bad as you think they are.