Such witchhunts were usually predicated on the supposition that the caster got their powers in deal with the devil.
so, unless that's a reasonable assumption for the setting, I'd say that its not really comparable.
Even then, people in the middle ages were sometimes executed for *making* accusations of witchcraft. It all depends on context.
Right, I think the quesiton of what you actually did to them is very very important. If you stole a few coins from them, they'll be pissed. If you made them fail their guard duty, they'll be mortified and might never report it.