Harsh! Get well.

I am not sure the clipless pedals changed things much, but I have also gone down on my side while clipped in and your shoulder and hip really do smack hard! I had my motorcycle front wheel grabbed by a Loveland, CO trolley track crossing the road when I was going 20 - 30 mph. The tracks were on my right, I never noticed them as they crossed the road at a low angle because I was reading detour signs. The tracks grabbed my front wheel and I went FLYING!!! I did a spectacular spread eagle flying face plant in the middle of the road. I was unhurt because I had on full protective garb. There was a car behind me, I twisted around, got feet first while still sliding, and attempted to stand up to run out of the way. Twisted my ankle real bad in the attempt, and couldn't walk for a few days. I would've been fine if I hadn't tried to stand and run while still sliding.

All the above is to show that protective garb works and is worth it, that when your front wheel gets grabbed you are going down no matter what, you might have landed in a similar way without the clipless pedals? It happens so darn fast its not like you have much controll. Or you might have extended limbs during the crash and had equally serious but different injuries without the cleats. So don't try to second guess yourself, just heal.

I hope you recover fully.