On one hand, sure it’s an easy substitution to make. On the other hand, who decides these things? How does this affect our company? Do people without hands actually care? It all adds up and it’s wearisome like PG says, all these rules and you just try to avoid stepping on one.
A quick search suggests this is a bit of a running meme used to discredit and poke fun at such trainings rather than something you’ve honestly experienced.
https://it.wisc.edu/learn/inclusive-language-for-it/
It attempts to replace, or offer alternatives to, offensive language in IT. For example "dummy variable" is under the category of "Ableist language" in the website and should be replaced with the term "placeholder value". "master" and "slave" are other examples of language that, apparently, need to get phased out.
I don't see the problem with the comment that you responded to. It's not surprising to me.