I do agree the OP arguments.
Anet did a wonderful job making pve champions/events challenging especially when you are with a zerg because it gets harder with more people present, unfortunately this does not hold true for wvw it just gets easier and easier to take objectives.
A simple fix would be scale doors/walls and siege equipment. Doors and walls should have more health based on the number of invaders/attackers present to make it an actual challenge to break into a tower or keep. I find that siege equipment should punish zergs but it barely does that job because there is a hard aoe limit on them and damage is minuscule to deter a zerg. Again my solution would be to scale its damage and its limit based on number of invaders/attackers present. Even the claimer inside a keep/tower/camp is a complete joke to a zerg but the grub in EB that is a fun challenge to take down.
I do like the direction Anet is heading with the recent wvw patches: orange swords, righteous indignation fixes, zero armor bill on the outmanned buff and the wvw character progression. There is several issues that needs to be addressed before you get a polished wvw experience but in its current state it feels like zerg to win not skill to win.
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