One day, United, City and Liverpool will realise that they will never achieve the same "events revenue" as Spurs and start proposing rule changes.
Tottenham have managed to create a lasting revenue advantage over everybody else within the league. Credit to them. But it's an unfair advantage if nobody else is able to create the same conditions.
Other than Chelsea, there is no club where I can foresee anybody being able to catch up to their "events revenue" due to their favourable geographical situation.
When Utd eventually build their new stadium, they will increase amount of events, but they will still be behind Spurs as Manchester is less attractive to promoters than London.
Chelsea, if they get their act together and build a new stadium are the only ones who could challenge - with their more central London location.
Spurs have been lording it up over everyone recently with their revenue arguments, "we can spend now because we suffered for decades to increase revenue". However, when (not if) Spurs get back into the Top 6 positions in the league, they STILL will not have the revenue to compete with the massive legacy fanbases of Liverpool/Utd - bet they won't be so happy with the SCR rules then!