That's fair, though I still think R7 and Messi would have faired much better given superior training (physical, mental, and strategy) and nutrition they have had over their careers.
I think I shouldn’t have written that second paragraph above, it just obscured the main point I wanted to make: direct comparison is literally impossible because the rules of the game are different now. Not just the equipment or the strategy, but the rule book.
You give all three the exact same training, messed up pitch, and rules, CR7 and Messi don't touch him.