Q1) Who has said you need to be a business to own miners? That is a strawman argument.
Q2)The KNC terms and conditions includes a clear requirement that the purchaser agreed that they were purchasing as a business, not a consumer.
Did the BFL TnC include the same term? If not, what does one have to do with the other?
A1) This an argument used by scam artists like Alpha Technology to try to skirt consumer laws
A2) Just because you put something in your T&Cs and people agree to it, that doesn't make it legal. If EU consumer law is the same as the US, then no matter what KNC say in their T&Cs, if you are a consumer not a bona fide business then you are covered by EU consumer law and KNC are in the shit.