Trump had over 4,000 votes more then Cruz and he should have more delegates-period.
Trump could've had them. Problem was, he apparently didn't know that, under the rules governing the Louisiana delegates, they were there to be had. So, he didn't even ask.
Cruz' staff, however, knew the rules and went after the delegates. When you play by the rules, how can that be construed as "stealing"?
Or was Trump due them by some sort of divine right?