Statistics definitely matter, the funny thing is he is not even better than Messi in goal stats (the only area he can compete with Messi) let alone dribbling, passing, assist, chance creation, motm and tons of other stats. In terms of goals, he is one tier below Messi, Gerd Muller and Pele who dominated everything. Statpadding against Luxembourg, Andorra, Faroe matter little when he is a regular ghost in NT tournament knockouts.
Lukaku has more goals for Belgium than Pele for Brazil thanks to the privilege of participating in "highly challenging" Euro qualifiers against Gibraltar, Andorra etc. and playing way more games. In your world, Lukau is probably in the same league as Pele and will be fondly remembered just like Pele 100 years from now
As of now, people remember:
how Ronaldo has 0 knockout goals in 8 games in 5 World Cups
how he has 3 knockout goals in 19 games in 5 WCs + 5 Euros (mind you this is the player with most goals with NT ever)
how he has won 0 World's Best Playmaker Award
how he won 0 player of the tournament award in 5 WCs + 5 Euros + Nations Cup + Confederations Cup something Bernardo Silva and Zagorakis were able to do
how he has less Ballon D'ors, Fifa Best, Golden Shoes, per game goal ratio and numerous other records than Messi
his per game goal ratio being worse than Lukaku at the NT level
how he was fired from United, benched in the World Cup, sent to exile to Saudi
why he got the nicknames penaldo, tap-in merchant
his emoji posts and weird insecurity about Messi
how he became the greatest symbol of primadonna style and narcisssism in modern football
how he puts his clubs, former/current teammates, managers under the bus publicly
how many of his famous teammates see Messi as clearly the best ever including Modric, Ramos, Scholes, Giggs, Rooney
how his technique, creativity, dribbling skills is nowhere near the football gods like Messi, Pele, Maradona, Cruyff, Ronaldinho etc.
He is a meme for delusion. a laughing stock even now, it will get worse in 100 years considering the fact that every couple of months he comes with something even more delusional to be in the limelight. Can't imagine the crazy things he would say right after his retirement, he would probably say things like World Cup is a farce, Saudi League has always been more competitive than Premier League, and that there's been always a conspiracy against him etc.