Of course not, it's just mindless comparing a semi interesting chemically imbalanced imbecile prospect to a proven all time great.
Ike would be one of Rocky's best wins. He can hit hard, and boxes pretty well, but Rocky punches harder, and outmatches his pace. By the 6th round, Rocky would be comfy on the inside, returning a punch every time Ike throws one, eventually beating him down and out.
If Rocky actually beat Ike in real life everyone would use it as proof he could defeat elite SHW fighters. Yet some pretend it's a mismatch!