Well depending on how you read it, the two sentences are the exact same. It doesn't matter what his mother tongue is, you think everyone speaks perfect English? I can assure you they don't.
"Bailey was not born in the UK, and therefore could only qualify for England by virtue of having an English-born parent or and English-born grandparent. Great grandparents do not count. Great-great-great-great grandparents also do not count. If one of your FOUR grandparents or TWO parents is not English born, you WILL NOT QUALIFY FOR ENGLAND BY ANCESTRY. Again, FIFA rules are very clear here."
You can easily read that to say you need one to be English born to qualify. If one isn't English born then you won't qualify. It makes perfect sense depending on how you want to read it. Honestly, its pretty clear what he is saying, especially when you read the whole paragraph.