Thanks for the post! I'm sure this is a concern many people will have, and it's something we've thought about a lot.
The reason we've decided to stick with these dates is that we're reluctant to do it on a weekday because many people with work commitments would be unable to join. We want to make sure people have enough time to find team mates, so we can't bring the jam dates forward, but we're also unable to push them back to the following weekend because the finale stream date (11th) is locked into the schedule and unable to change.
We really appreciate your interest and I'm genuinely sorry these dates aren't going to work out for some of you. We want to make sure as many people as possible have an opportunity to join, and it sucks that it's not always possible to do that.