Yep he does, but the wind slashes from Skyward Pride also count as physical damage, so they get the Superconduct bonuses as well, and Razor is all about normal attack combos. It's good for either of them really, but I play Beidou almost 100% off-field, so I still like the craftable Inazuma claymore for her. Fits her kit (and aesthetic) really well.
Played around with Itto in the trial tonight for a while. He's ok. Took me a bit to realize that his charge attack is different than all the other claymores and how he utilizes that Superstrength buff. He's another Ungabunga damage character like Diluc, with a slightly more active kit. Not ultra impressed, but let's see what the playerbase can come up with for him.