I have said all this year that Rinne is a below average starting goaltender in the NHL, but not because of anything this playoffs. This series was a small 7 game sample size and 14 games combined from him this playoffs. Since the playoff games are such a small sample size, one bad game of getting lit up can drastically kill an overall save percentage. Rinne's save percentage for the playoffs dropped from .913 to .906 just with last night's game alone. It also rose from .901 heading into game 7 vs Anaheim to almost .920 just after that game 7 alone.
Speaking of Sharks goaltenders in the past in the playoffs, I was looking at Toskala's splits from the 06 playoffs earlier on. After game 3 vs Edmonton, his save percentage for the playoffs was .936 after 8 games. Then it dropped down to .910 and ended there after game 11 of the playoffs, because he allowed 13 goals on the last 75 shots in the final 3 games. He went from looking like he could have had the best Sharks playoff goaltending run at that time to just whatever after a measly 3 games of being lit up by Edmonton. The size of games is so small, the save percentages can drastically fluctuate after just one or two good or bad games in the playoffs.
My basis that Rinne is below average is based on his last 4 seasons and 197 games of regular season play that he's had a combined .912 save percentage. And that .912 save percentage is bumped up by his amazing 14-15 season when he had a .923 overall and looked to be bouncing back after the two bad seasons. But he regressed back to that again. Aside from Pavelec and Ward, I'm not sure there's many other starters that have been that bad for a combined 4 seasons now. Perhaps Lehtonen, after his two straight horrendous seasons. Jimmy Howard too, although I'm sure he's even a starter anymore. Though he was for at least 3 of those seasons. Rinne allowed some bad ones this series, but probably not at any higher of a rate than he has for 3 of the last 4 seasons.