Son Heung-min isn't a national team representative, he's an idol

I went to see the match against Uruguay at Sangam in person,
and I got the feeling that Son Heung-min felt more like an idol star than a football player.
When the kickoff happened and Son Heung-min waved to the stands, the crowd loved it.
I wonder if he was imitating Griezmann during Atletico Madrid's tour in Korea;
back then, because Griezmann was playing well, his fan service looked good,
but since the performance was terrible, seeing him do fan service didn't look good either.