Warzone's model is different. The purpose of clans is to gather players community, rather then milk them for money. Hence all comparisons are irrelevant.
Maybe this was true some time ago. Yet since the introduction of Clan Wars and WZ Idle, clans in Warzone demonstrate all the same observable patterns which, for example, clans in World of Tanks Blitz do.
And if you would like to leave Clan Wars out of this scope equation, then the single biggest issue of the clan cap goes away. Everyone is free to have their own "non-CW community clan".