well, i guess it comes down to this,

will it affect you ride much? probably not, I think that's exactly what rim tape is for.

But

Do you trust someone who built a wheel like that to also build a wheel well? And furthermore, since this was obviously not as advertised, do you really trust an Ebay seller as unscrupulous as them to build you a good wheel. If you want to push it, I'm sure you can get your money back, but if not, I find it very unlikely that those wheels will kill you (unless they have another, less obvious flaw)