No, it's NECESSARY, my friend, goddamn necessary.
Can you name atleast one team without consistent superstar carry from top5? top10? top15? That's it.
mantuu, MICHU, valde... They're not bad. They're even decent, but it's not enough for them. mantuu is inconsistent, MICHU - idk, he wasn't ever on tier1 level, but most likely he will be slightly better than ISSAA and that's it. Valde? Consistent, but he's far from being superstar.