2017 Worlds LP, 2017 Nationals, 2016 Cup of China, 2016 NHK.
She was marked lower. Hence only getting 42-ish PCS when a perfect performance from her deserves to get PCS on the level of anyone else these days. You admonish her getting a personal best score when the problem is she was actually underscored in the past.
If you're not going to get into, then you're not judging correctly. Kwan had programs without a 3-3 that deserve to score higher for performance/choreography/interpretation than ANY Ladies SP these days. Also note the PCS Jason Brown gets for programs without a quad. Difficult technical content can potentially add excitement to a performance, but it's very possible to have the best PCS ever with considerably lower technical content. The skating Brian Orser and Brian Boitano did in 1988 deserves higher PCS than most guys these days, despite having no quads and not even a Triple-Triple in their SP's.
Karen got URs and - GOE on all 4 of her 3-3 attempts in 2016 NHK and COC...so what you said is false. She has never gotten a +2 average GOE (1.4) on her 3-3, and she has only gotten full credit for the combo twice in more than 30 attempts internationally. I will agree Karen has marginally better components than Bradie and Mirai, but does not compare well to the top tier of skaters, her skating is very fragmented and she doesn't have great flow--I'm not talking about her jumps. I don't know who you are saying she deserves the same PCS as but she doesn't have the Skating Skills of Kostner or the flow of Medvedeva or the power of Katelyn. Maybe she would have scored a 74 if she went clean and perfect, but that happens once in a blue moon. She hasn't had a remotely clean program of any sort this season, and the number of clean programs she's had in her entire career can be counted on one hand.