Technically it's true that if you were to equate influence to the ability to protect, that when you lose that influence you also lose the ability to protect.

So far, it's all been speculation, even drawing parallels with Android or Windows doesn't help because it's not similar enough. I would expect a broader ecosystem or additional facets to an existing ecosystem to also cause an expansion of questionable quality and practises, but that applies to everything, not just mobile phones.