You just explained the exact reason why your comparison isn't fair lol. Trushing has been on arabia since for ever, the players are well adapted to it, but it is pretty much proven that towers were too strong for it's cost, hence the nerf. That's completely different from Arena, where the tower meta came in and players were "forced" to adapt to something they (arena only players) weren't familiar with within a couple weeks for a tournament.You mean in the way that tower nerfs were done to satisfy to those who can't adapt to trushes every game on arabia?
Honestly when I decided to go for an ara alt covering the range from 16+ to 1900 on arabia, every single game was a trush. The majority of players fit into this category and the largest share of complaints about every game being towers regardless of civ. The wall thing is to just be more viable against trushes in especially arabia. Arena trushing existed before WK and this will bring back the old strategy into WK in the rare occasions it can be used, rather than every case as it can be now. EVERY arabia game I played was a sodding trush in the elo range covering most players and a lot just didn't want to play any more - if you're against anti tower changes then you're really just trying to keep driving people away from the community which is by far the worst thing that can be done for the game.