Lethality is still a problem, and pretty darn big one, at some points i can just take lethality mid and snowball mid, bot, dragon, game, champions who profit from it will always build brain dead lethality. Tanks deal even more damage now than before, and it was bad before, full tanks being the most damage to champions on both teams. Just because everyone doesn't mean that majority doesn't, player base is dropping rapidly and more and more people are moving to Dota2 or HotS, which stays true to their fans. Strategic element of the game was the fun part, its not like we lack flashy brain dead games, but slowly they really are removing everything that was unique about the game.
The fun days of warm color summoners rift map, playing for the fun of it, 40 min games with unique champions and every lane having decent strategy are long gone.
But you can see that the people that ask for better games are always upvoted, not downvoted, majority of opinion can be gathered by what posts are made here and how well the are received, and its easy to gather what majority wants. Tankier turrets, old IP system back, runes and masteries that had many improvisation levels in them not completely forced paths. Less damage overall and less snowbally games, old school mages to be viable again, though all of their unique things got reworked and not for better, tanks to be tanks again, adc and supports want stable place in game, not 1 patch broken and another patch useless.
The majority will only stop crying about it when they all left the game, and the game itself became completely another game. You have not been much in gaming industry if you think that changes are made for its players benefits, we can count way much more ruined games than the games that stayed true to their colors. When we get something more enjoyable to jump on i think we will be out of your way.