Coincidence.
This reminds me of what I thought was an out of character moment for Zoro. In the Skypeia anime he catches Robin after she was electocuted and says "she's a woman" (also I'm rewatching it on YT - how the fuck did Robin survive being electrocuted through the brain lmao. I was like wtf when so many people were shown to be alive at the end of the arc. Retroactively away from the futility and terror of the arc, but the experience up to then is still top tier).