Is there a timeline for real Firefox on iOS? Is the EU actually going to push this through?
But since then they've made so many exceptions to that policy, where the applications are important to keep people in the Apple ecosystem, that it's hardly a strict rule anymore. So while they probably could make yet another exception, they probably feel a general purpose browser such as Firefox would risk being the last exception they make.
It may still take longer, since dev work has to be done, and I have no idea if apple's still going to block JIT usage for anything besides safari.