I mean, put it like this...you have teams like the Bulls, celtics, thunder, knicks etc. who struggled for years, built up draft picks, developed youth....the celtics, Knicks decided to trade those pieces/picks to get stars to "win now"...the bulls, thunder struggled, still worked to get more pieces to got better each year, still not there yet but close..
then you have 3 superstars who thought "hey, if we get together well be unstoppable!" and they go to the championship that same year...
thats why it feels fake....it took the celts, knicks, bulls years in mediocrity to build their teams to championship levels...the heat basically bought a championship