I think he deserves a push. A rapid one at that. Give him a storyline, with someone who can work. Have them tape angles and other things and lead to a upper-midcard match at WrestleMania, and hell even have Ryback go after a mid-card title and capture it. He should be having gritty feuds for a while before capturing the WWE Championship. But sadly...
It's over for the Big Guy.
The feeling that your favorite mid-card guy has reached his potential with the same back-tracked storylines and angles with no real progression of character or build of heat, has reached Ryback. It reached him as soon as he turned face in 2014. Much like Dolph Ziggler and Bray Wyatt, there's no hope that he'll break through the glass ceiling and grab the brass ring. I don't want to sound cliché, btw.
It's just that they give him a monster pushed from time to time, and each time it amounts to nothing. In 2012, he was working CM Punk for the WWE Championship. In 2013, he was working John Cena for the WWE Championship. In 2014, he was working The Authority in the biggest angle of the year. In 2015, he got the Intercontinental Championship and won the Elimination Chamber. And each time it amounted to nothing, just like 90% of the rest of the roster, he's not going anywhere.
A push doesn't exist in the original sense of the term. It's not about who draws money or who the fans want, that gets a 'push' as in get prominently featured. It's about who the company thinks can be the best PR rep. They 'push' a guy by handing them a suit, and booking him for every talk show in the country. It's not about keeping the guy strong so the fans can see him as a threat and a legitimate champion they would like to get behind. It's about how can we keep the sponsors and 3rd parties happy while still pleasing a small demographic of an audience, which they only do to keep sponsors and 3rd parties happy.
If WWE still operated like a wrestling promotion, then I'd see Ryback or anyone that can bring in a buck and keep the fans happy as getting a push. But WWE isn't a wrestling promotion.