I don’t they were holding back. Hitler isn’t particularly known for his restraint. It was just more rudimentary technology. There were only around 2000ish planes on either side, and they weren’t committing everything every day. The planes were smaller, the bombs weren’t as destructive, and targeting was pretty basic. They absolutely did tons of damage, but it took months.
Carrying out a similar engagement today would level a city in hours, maybe days.
As a person who hates phones, I love this game. I got accepted into the beta a week or two ago and having a game that doesn’t require me to touch my phone all the time is my favorite thing.
The only thing that would make it better is integration with other smart device step counters. Being able to play (more like progress I guess) a phone game while not even carrying my phone would be hilarious. I am sure you’re getting hounded by people about this non-stop.