Middle gets both armrests. Bigger issue than recline IMO. And recline slowly. No need to slam back. I pay the extra money for premium seats as the amenities help with my physical issues. Others should consider premium seats if they have issues with standard seating. “I’m too tall, you can’t recline.” sounds like a cheap person concerned only about themselves and won’t spend their own money to solve their own problem.
I've seen people with an open laptop wedged into the seat/tray and wonder if the slam back could break a laptop screen. I'm surprised it doesn't result in drinks in laps more often.