Agreed. I really like that it makes more maps useful, like say if maps like Ashen Wood or Pier had breach/perandus, you'd be powerfarming those for an hour. Running strands over and over again gets boring.
Also, levelling with zombies is agonizingly slow. Now that I am 70 zombies is actually pretty fun to play. But...will never level zombies again... ever. Literally takes twice as long as pretty much anything else.
Are you sure about Lightning War scaling with attack speed? I'm not seeing that mentioned anywhere on the wiki.