To add a bit more context (I was in my early twenties when VdB was on the scene): I think VdB was wildly popular in both Flanders and Wallonia during his lifetime; mostly in the sense of a pop culture / rock star: his Cipollini-esque flamboyance (the dyed hair, glam outfits, sports cars, the interviews exuding a steely-eyed determination), a personal life that could have come straight out of a soap opera (cfr. the story of Sarah and the Vuelta '99) and was plastered all over the tabloids at the time (not so much social media then), the fact that he won races while going out partying the night before and more or less boasted about that... while all of this brashness put off some, he could get away with a lot of it because of the flashes of brilliance he showed - think e.g. Scheldeprijs (of all races!) 1996 - and his retro-elegant style on the bike that was universally adored by the hard core cycling fans, invoking visions of mythical days gone when Coppi-like legends would ride away to the horizon just on their sheer talent...I edited my post a bit after you posted, added some more context.
Agreed about him dying young, feeding the myth.
Of course, the results never really matched up to the myth (except for that LBL and Vuelta) and then there were the drugs.
And now Remco; I haven't heard anyone become lyrical about his style on the bike, and besides the bit of brouhaha about his victory salute(s), there isn't much controversy or sensationalism to be found around his persona, let alone the bad-boy glamour of VdB or even Boonen in some of his days. He is popular because of his results (which probably already exceed VdB's palmares) and the near-unprecedented ways in which he achieves them; he is loved because he is the One who has to break Belgium's horrendous, decades-long GC drought...