Many games these days don't come with a physical manual, and I think it's bs. If we're going to get a physical copy of a game, it should have a physical manual.
They should just make the manuals thinner instead of not having one. For an example of what would be acceptable, DK tropical freeze has a 10 page manual, and it gets the job done. Opening a game to find a flimsy single piece that tells me there's a manual in game or worse, online, irks me a little.