Minor things, like what you just pointed out, do not bother me that much. I usually know what they meant. Larger errors do though. I haven't gotten to the newer content in this yet, been replaying it from the start.
I think the worst I ever seen was several screens in a foreign language totally, but that wasn't this game. My guess was whomever did the translation didn't check for errors or missed text.
But yeah, it depends on the severity of the errors. If I hate it enough, I'll demand my money back.