Jennifer Thompson- How can she Bench as much as she can Squat?

[Bar-barian]

The usual excuse when a person benches near what they squat is that they focus on the bench and/or have poor squat technique. I know that she is a bench specialist, but as a top competitive powerlifter, she must have good squat technique and train the squat often. How is it possible that her biceps, chest and triceps are as strong as her quads and hamstrings? Is it long legs? Weak back/hips (then why the decent DL)? Obviously the ROM is much less, but that's true for everyone. It seem very strange to me and I checked and couldn't find another thread that specifically commented on this.
Here's her video at the 2016 Raw Nationals where she does a 314 lb squat and a 313 lb bench!! (and a 424 lb d)
Jennifer Thompson 2016 Raw Nationals Video
My best guess is that she has unusually long legs which makes the squat hard and she mitigates that in the deadlift by doing a super-wide sumo stance. Or she is just a freak of nature with arms stronger than her legs.
2016 USA Powerlifting Raw Nationals - YouTube

[Mark Rippetoe]

I don't know. Maybe she just likes to bench. I see a few technique problems, but nothing that would explain why she isn't squatting 375. It's certainly not anthropometry.