can't say the extent of damage from the photos, but the main frame is tough to damage beyond use. these bikes are more typically totaled because of subframe damage, that and plastics.It dented from the engine guards I used, because it hit the ground so hard...
the main frame tube can be crimped in that exact area from engine bar installers over tightening the U-bolt mounts supplied with the bars, i've seen that done, even though it will never 100% prevent the bars from moving in a flop.
i use custom saddles at the mounts. there's no way to determine whether saddles would have prevented the damage, but i tend to think they would have helped. these guard saddles on my bike have been field tested numerous times, so far so good.
put the bike back together for a test ride, you'll find out real quick if you have any issues.