Honestly I disagree, edits are for spelling and wording. It's important to not edit the content of comments, so that follow up comments and their context remain the same.

It'd be more helpful for edits to be appended to a comment, allowing context of the conversation to still make sense.

Misinformation is also going to be much overused and meaningless if used for situations like a simple mistake. The commenter just misread something - branding it as misinformation seems to imply intent, otherwise why wouldn't you just call it a mistake?