It isn't just the numbers. People who have scouted him say his arm just isn't where it needs to be. From Fangraphs:
The injuries did take a bite out of the profile here. Pre-injury, Quero’s arm was a weapon, with sub 1.9 pop times and rockets to second the norm. This year, his arm strength, accuracy, and mechanical consistency regressed, all of which combined to nearly halve his caught-stealing rate. The grade above reflects a blend of strength and accuracy — teams often grade those traits separately, but we’re simplifying here — the latter of which is especially concerning. Perhaps Quero will shake off the rust next season, and we’re projecting on the arm a little just to hedge, but his throwing has looked pretty messy in the Venezuelan Winter League this month. There’s a real chance that he just won’t be the same as he was before he tore his labrum.
Quero probably can still be a solid catcher option but more like a typical 85 wRC+ catcher with solid enough defense to do fine.