It's not very likely to be true. The company is in business to help students cheat by violating school policy and the student's commitment to the school.
If their core product is helping people be dishonest, then how likely is anything they say really true?
Notice the rest of what I said.
Actually, if the essay being sold contained plagiarism before the student committed plagiarism by passing it off as his or her own, it wouldn’t be a very effective product for the dishonest purpose for which it is marketted, now would it?
Our country is celebrating a federal holiday named after someone who plagiarized 40% of their dissertation.