I've been raiding as a holy paladin for the last couple of months, and I just recently started doing Mythic+'s as a tank these past few weeks.
I can honestly say, Prot Paladin is in a great place right now, and it's a super fun spec to play! You always have something to do, the abilities you can use to help the group (SAC, BOP, LOH) are all so strong that it makes the benefit to the group so much better then some other tanks, it's great!
Most of these forums as negative, and I just wanted to say prot paladin has been a eye-opener for me and it's brought back tanking in a fun way!