You'd be able to use proper Firefox there. And it is a good thing, it weakens Apple's malicious control over Web standards (sabotage of using SPIR-V for WebGPU is Apple's fault).
You've missed the point. Once the restriction on which browsers can be used is lifted, people won't be switching to Firefox in vast numbers. They will be switching to Chrome. Just because someone is able to use Firefox does not mean they will use Firefox.
May be not, but currently they can't switch to anything at all. So it can't be worse than it is already. Let users decide what they want to use instead of deciding for them. Just the fact that you could use alternatives will already put more pressure on Apple to behave.
Basically it's not an argument at all against forcing Apple to remove that ban.
