I transport my iPad in my backpack with just the keyboard folio. I haven’t had any bends or damage, but then again, I’m not careless with my things. I don’t throw my backpack around while my $1400 iPad combination is inside and as a result, no bends.
Smart Keyboard only. In my backpack it is either inside my built-in laptop sleeve if I’m not carrying a laptop, or in the main compartment if I am. Not worried about it in the slightest. Been carrying iPads like this for years all over the world.