You are arguing semantics and aren't even right about it. A drawback can be minor or major. We are in agreement but your being silly about the words I use even though they are completely valid. You might want a synonym that's harsher but that doesn't make the use of the word wrong.

I'm basically saying it's a problem and you are going "no fool, it's a really really big problem", like no shit, that's what I said. I even added the word clear to show that's it's not a small drawback but a major one.