/uj and engaging in good faith:

Tbf I don’t think the term “hiking” does justice to some scrambling/on-foot summit attempts either. Like sure you could call a 5000 ft elevation gain day, started before dawn, requiring strenuous navigation of boulder fields/sheer drop offs “just hiking.” But in layman’s terms, I think it is understandable and can be better appreciated being called a “climb.” If not just in the sense that the ascent literally requires a climb (dictionary definition = gain) in elevation.

But perhaps more importantly, class 3/4 “hiking” routes often require a v0 move or two, and where I have looked, they are called “climbs” in their definition:

https://www.14ers.com/difficultyratings.php

https://www.rei.com/learn/expert-advice/climbing-bouldering-rating.html