Nah, I understand what you mean about wRC+ and I'm not misinterpreting how it's calculated here. Even relatively, Bichette was trash in two strike counts in 2021. The reason I even made the comment I did is because I ran a leaderboard search first and expected to find Bichette near the top of the list, only to find him on page 11 out of 13.
We're obviously talking about relatively small samples here and it probably doesn't mean anything for the future, but in the vacuum of 2021, Bichette was #307 out of 383 batters with at least 170 PAs in two strike counts. He hit for an atrocious 26 wRC+ in 357 plate appearances. That's all 0-2, 1-2, 2-2 and 3-2 counts combined and they account for over half his PAs.
Conversely, Vladdy ranked #63 in the league with a 72 wRC+ in two strike counts (304 PA), Semien was #30 with an 87 wRC+ (377 PA), and Espinal was the best Blue Jays batter to clutch up in two strike counts with a 100 wRC+ (120 PA). Espinal ranked 9th in the league, but the sample size was obviously much smaller and much more likely to regress.
Interestingly enough, the guy we all want on the team for 2022 was right behind Espinal. Jose Ramirez ranked #10 in the league with a a 99 wRC+ on two strikes (327 PA).