The defender team also can benefit from this. Infinite construction sites are quite a pain in the arse once allowed to build up.
in NA Siege construction sites are not allowed on defense as far i as remember , people ended up blocking the entrances ,
Thing is : before , there was a few individuals who putted ladders , now its organized and people know exactly where to put ladders to avoid 90% of the siege map
IMO ladders should be removed all together even from siege , you cant build fair maps with chokepoints when you know people wont use them
No wonder defense always lose