Not to concern troll here, but they did miss the 2016 election. Latino decisions had Hillary beating Obama's 2012 Hispanic numbers, and Trump in the mid 20's. Trump shockingly beat Romney's performance with Latinos.
Isn't that going by the exit polls, which are now widely recognized to be considerably off with at least WWC/educated whites?
I'm not sure if those were accurate wrt Hispanic voters or not, nor am I sure of LD's data, but personally I am past treating exit polls as sacrosanct. I'll happily refer to them in discussions about demographics/election data, but not as a final say on the matter.
No it’s not just the exit polls.
Center for American progress did a comprehensive post election survey (adjusting for the flaws in the exit polls that you mentioned) and found that Trump essentially matched Romney’s performance with Hispanics.
More likely than not, Latino Decisions screwed up the national numbers for Hispanic voters.