Not nonsense at all. The poster I responded to referred to 'other team sports' and not women's teams only.
I'm merely pointing out that rugby operates in a world of maybe 12 teams where only 3 of them (and that's even managing to incl England despite their best efforts at this time) are at the top consistently and the rest fluctuate to great degrees in terms of form, performances etc.
Men's, Women's, underage teams of both sexes in football operate against a much much larger pool of teams in a global sport