I mean sure. I personally haven't researched and become an expert on this ... it is an early-user's misconceptions thread after all. And a dev can justifiably reflect on all of their tooling and consider their general usability against their popularity.
However, by the same token, your lack of any counter examples isn't exactly highly credible either.
Nonetheless:
Whenever I've seen an opinion from someone who's used both mercurial and git, their opinion is always that the mercurial interface and model "actually makes sense"
AFAICT, the git CLI (at least up until the more recent changes) has widely been recognised as being unnecessarily janky and confusing especially for common and basic tasks
Apart from that, many devs have shared that they always struggle to remember git commands and always need to rely on some reference/cheat-sheet (obligatory XKCD), which IMO is a product of it both having a poor CLI in need of polish and being a program/tool that isn't naturally constrained to CLI usage but rather naturally implemented with a graphical of some sort.