The main reason is likely because Ronaldo is just a flashier player. Especially earlier on he had more of a highlight reel for dribbling as opposed to the efficient and effective body feints of Messi. Ronaldo also had some screamer long shot goals. Outside of that the dude always marketed himself well. Flashy is appealing to young fellas. Not saying Messi wasn’t, but that is likely why some of those dudes prefer Ronaldo. Messi is still extremely popular in his own right.
They aren’t really irrelevant. They still work, but they are riskier. Putting the ball in the air like that is essentially making a pass 50/50 instead of a closer pass.