Gross hyperbole is not going to win you this argument.
Morris took him to the ground and once Pollard was down, Morris was allowing him to get up because you can't lay on a blocked player. Morris wasn't allowing him to get up, stand up, he just wasn't laying on him. Pollard was knocked down and had a 230 pound RB badgering him. All the while, Brady still held the ball. Pollard, having to do his job, never relented and attempted to tackle Brady by reaching his arms out and hooking his legs. Brady, unfortunately, got injured on a play that has happened to him and countless other quarterbacks countless times without injury. It sucks.
But that doesn't make it illegal or dirty.