Yeah,you also need enough people willing to mine (and spend a lot of money doing so) your pork chops blockchain, otherwise anyone could come along and do a 50% attack.
It's still a problem in the largest deployment. Does anyone have a "solution" to this?
In this specific case, it seems like what they really should do is have a set of trusted nodes for ledger replication.
W.r.t. having a set of trusted nodes, that's fine, however does the blockchain add anything in this situation?
Satoshi didn't coin the term blockchain and they existed for a long time before bitcoin so giving him sole claim to it because it paired it with a feature that isn't specifically required to have a blockchain seems silly.
That said I do agree that their are a lot of buzzword vultures using it at the moment for stupid business ideas though I think 99% of the bitcoin business ideas are poorly thought out and poor replacements for existing solutions("but with bitcoin!") so it's no surprise 99% of the blockchain ones are too.