Definitely agree, a great idea to spice up the lobbies and make them more alive. You've clearly taken the time to think this out and make sure that it's fair for everyone and can't be abused, plus it'd give me a reason to actually do the vortex jumps and parkour.
There could also be an achievement in the achievements section for completing all the lobby parkours and vortex jumps, that'd be a fun challenge to add.
I already mentioned it and I think it's a good idea