Even if you exclude the implied carteling and take everything he said with a grain of salt, the outcomes of this incentive structure are clear: once SV (i.e. the YC centered VC machine) gets into a space and has a main horse, SV can no longer incubate new innovation/competition in the space. It can also very likely become predatory to the potential innovators that SV is supposed to support.
At a more macro scale, this means that YC will fade in the same way as everything else does because it won't be able to entertain a wave of innovators, and they will, as he did, seek and build the next SV.