Did I miss something? When did TEN companions become a small number? That's massive, especially for the amount of work involved. Pillars of Eternity has a generous 11, but Mass Effect goes down to what, 7 or 8? Dragon Age is also in the 9/10 area. Meanwhile DOS2, Larian's previous game, only has SIX. I'm not at all disappointed in the number, and am honestly really glad the Dark Urge exists. At absolute most I might want more variety in the companions, but even then eh. What would we give up? Gale or Wyll, probably, for a dwarf or halfling, maybe?
You’re right when comparing to modern games.
But people are using the rest of the Baldurs Gate series as a benchmark, and there were 17 companions in BG2. So it’s a bit of an availability heuristic being exploited to make people say BG3 should have more, but it gives me an excuse to demand MOAR.