Honest analysis:
Latinos range from light-skinned to dark-skinned. Past research shows that dark-skinned Latinos basically vote like black voters do. Light-skinned Latinos basically vote like white voters do. They are ideologically more conservative, more likely to speak English, etc.
In an election with low overall turnout, including Latino turnout, but a boost to some white turnout based on Trump's coattails, what we have is a whitening of the Latino electorate in a way that looks like more Latinos support Trump than did Romney, even if no one's votes changed.
We may have a ceiling effect, where almost all non-white Latinos are voting D, and so the lopsidedness of the tilt is unlikely to increase without demographic change.