I dont think its worth to pay 12e monthly just to do 4 lfr raids and then log off , they can simply remove access to normall-mythic raids and maybe some other features to from f2p players , that way everyone would enjoy this game on a fair price.
I personally play semihardcore atm raiding mythic etc and thats because it wouldnt justify the cost otherwise but real life and other responsibilities make it harder to keep up , i would like to play casually just to see the story and kill some time but the price is way too much.