He may be cut after year two. The contract was structured this way to get him out of Miami. In doing so, they are paying him like Gronk/Graham in 2015 & 2016.
He also may not be cut, that's the value of signing a 26 year old to a 5 year deal is as his age goes up, his salary goes down...he should get the most of his money when 26 and 27 and see his salary start doing down years 28-31...and 3 years from now the cap is projects to be $171 mill (you posted that) when he'll be making only $5 mill or so per year...not bad.