As long as they continue including the Money Back Guarantee on all listings and continue advertising it the same way, then yes, it does.
& this is the second part of my point regarding BPF.
Buyer Protection Fee not ITEM
So what we've been seeing on combined invoices where they charge BPF for every item is almost certainly illegal in 2 ways.
1 Buyer = 1 Buyer fee (the 75p)
But if they are already including the MBG on all listings, so item specific, not buyer specific then enforcing purchase (mandatory) of a second redundant system is almost certainly fraud. Very similar to what Dixons Group and similar were doing with their extended warranties all those years back. They were charging for the first year which was already the consumers by legal rights.
Here they advertise the MBG for every listing and then charge for every item on a combined invoice with BPF.
It's dodgy as hell as should be seen by Trading Standards.