Is ESPN Right Not to Push MLS on EPL Viewers?

Kartik Krishnaiyer believes ESPN missed a big opportunity by not pushing MLS telecasts during their early morning Premier League broadcasts:

Does ESPN simply assume that viewers of the Premier League and La Liga will not watch MLS so they do not waste their time promoting it? Or is this a tacit admission that MLS has maxed out as far as viewers in its current form, and the network is more concerned about building the brand of international football entering a World Cup year?