The former, minus the snarky wording, is an important action too. But I agree that it needs backing up the whole way with the latter.
In an unregulated industry, market forces are the only regulation that can possibly make a difference. The same applies across the board, from seedy shitarse indies to the even seedier WWE. But too many fans lack the courage of their convictions, where the only "courage" required is to pass up the luxury of indulging in their chosen entertainment outlet.
I gots ta have me wrestlin'! I gots ta know what happens! No you fucking don't. It doesn't matter one iota compared to the ugly real world issues fuelling this product. Keep that £9.99 in your pocket and find some other way to fill your time. Something you don't have to make pathetic excuses to support.
If the law's not going to force promoters to get their house in order, then it has to become a financial imperative, and that can only be enforced by us - the givers of the money or the viewers that attract advertisers.
If you can't exercise some self control to impose some basic standards on these people before you line their pockets, then you are complicit and you are enabling every future incident that occurs as a result of the conditions you've decided to keep monetising.