Yes, i agree with your issues. I know the last jump is a bitch, the teleproblems has been known for a while and constantly on my mind while mapping. It was either a smaller hole/or a bigger one with that problem, i even left a small area at that platform to make it easier. I increased the push speed so that if you get passed that ramp, your as good as done. It is easy, i promisse, done it each time i ran tests on it.
Anyways, there is a reason for each last jump (my opinion). And thats the jump that separates great concers from those who just give up and leave.
Even if its annoying, it puts an end of all those other (easy jumps) and you can finish, feeling slightly more professional
The bright light in the tunnel was a misstake, i was about to remove it but forgot. However, it only bothers those in the tunnel.
(I'll be here if you need to deal with your anger at the last jump, and i can take the blame for that!)