I'll try and spell it out.
Since the inception of professional football, outside investment has been central to the on-field success of football clubs. Specifically, Liverpool received investment of this sort to fund their success, hence the amusement, but the same pattern is evident in pretty much every club in every division at various points in their history.
The opposition to outside investment in clubs is generally motivated by a desire to protect the position of incumbents, rather than a matter of high principle. FFP is about securing the wealth of the likes of the Glazers and Henrys, not the integrity of the game. It is very amusing to see those whose club's position was enabled by external investment to attempt to mount moral high horses when others do the same.
The only thing different about the modern game is that there is sufficient revenue possible, through TV, sponsorship and merchandise, to pay back these investments if they are successful, which was not really ever the case through gate receipts in the the good old days. ie modern sugar daddery has more potential to be sustainable.
Happy to help!
