Horsecrap. "Mean spirited"? "nonproductive"? Trump's absence of a ground game was nonproductive. That's the truth, and if that's "mean spirited", some snowflake can't take the heat.
Trump and his supporters didn't get the job done. Bottom line, full stop, end of story.
Crying the other team cheated because you never took the field is nonsense and you know it.
The whole "Cruz Cheated" line of dreck is to smear Cruz just before another primary.
The rules have been out there for months, and there has been plenty of time to get a ground game in place, even if it meant that the guy who is supposedly spending his own money actually had to spend some.
You have missed my point entirely but I think that was your aim. The proof of the pudding is in the eating and we will see in June/July.