It makes sense to me and I’ve been editing comments this way since the early 2000’s. For some, it’s a cultural practice that’s probably decades old.
If the platform didn’t state the comment was edited, I probably wouldn’t bother but if it does, there is always a thought at the back of the reader’s mind about what happened. Leaving a note about editing negates the thought. Leaving pointless edits less so.
I find it more ethical and transparent, particularly in discussion threads where debates are being held.