Look the issue here is endangering the National Air Space. What this means is that models flown by line of sight don't pose an issue because they simply can't be flown high enough to do so. FPV on the other hand can be flown much higher and do pose a safety issue to civil /commercial aviation. The FAA will win here and ban FPV and Congress will agree.
What exactly does the "FAA" win? When you consider who they work for I would say that if they ban FPV they have failed miserably at their job....and if they feel good about it, well ignorance is bliss.