I disagree, though like with everything it needs to be easily scanned & laid out well. I've had a few where people have put them in categories — Expert: A, B, C; Intermediate: …; Learning: … — which personally I've liked.

Without the list — if you don't have at least familiarity with, e.g. Bash/Git, it's a big minus & I'd prefer to know that before the interview stage.

Sometimes people go for concise & hit sparse, which is definitely worse :) Even on a two-page CV, you could fit in a version of this if you remove a "Personal Statement" or "References available on request" (I'd hope this is a truism!)