By definition then, this is not a 10 top. Personally I wouldn’t have kept that.
As for the frets, I had to polish them on my 10 top WL as well, but not because they were corroded, they just weren’t polished enough (especially for the cost). I consider occasional fret polishing a necessary and largely unavoidable part of guitar ownership, so for me those frets would have been annoying but not a deal breaker.