Univision Radio has done so well with Spanish news talk, too (sarcasm intended.)
Nobody had done well in Spanish language news talk save a couple of stations in a few markets like LA, New York and Miami... and that was going on two decades ago.
And all of those past efforts, WADO, KTNQ and WAQI, were owned by the predecessor of Univision Radio. Unfortunately, there has never been a way to syndicate / network Spanish language talk over multiple markets and without the economy of scale that represents, the creation of local Spanish language talkers is not a viable project.