half, you're the only one saying the broadcasters were pushing this as an option initially. Why would they, they were mid broadcast agreement, just wait until it runs then either don't offer another or reduce the price paid for the inferior product, easy.
Multiple media reports have the NZRU pushing it because of declining performances and Foxtel originally agreeing as long as the teams out were the Kings, Jaguares & Sunwolves. This was followed by ARU telling them pressure would be applied and the Force would be the ones taken out.
There is no evidence that the broadcasters were pushing it. This is ARU through and through.
Most media contracts with sporting bodies have certain metrics needed to be met.
By way of an example if the AFL rating fell next year to say 20% of what they currently are there would be clauses within the media contract with minimum rating numbers.
There is no reason to suppose the SANDZZAR media deals would be any different and being spread across as I understand it 16 different broadcasters there would be a need to Super Rugby to rate at certain levels.
Media reports earlier in the year had South African and European rating in mega rating drops.
Then out of the blue SANDZZAR announces a reduction back to 15 teams.
Up until SANDZZAR announced the 15 teams it was all guns blazing on the 18 team format only consideration was somehow a revamp of the format.
Then out of the blue comes we must go back to 15 teams. My logic says the broadcasts were saying fix the ratings it worked with 15 teams and we need to make Australia and South Africa teams competitive.
However I admit to nearly always being the person with the unpopular opinion and people always asking for proof. So I don't have any proof it for me makes logical sense how it happened.