I agree with your list, and see the emphasis of your posting as coaching.
1) Manage the team so that they are not trying to race an ultimate effort requiring a huge mental drain at X Invitational, conf. dist., reg., & state, all in consecutive weeks. Maybe train them hard to be flat at a conf. or dist. if you know they can advance regardless.
2) Much of what I am adding requires luck as well. Doing everything right does not assure that it will play out as planned. They are 14-18 year old's, so a break up with boy/girl friend etc. can trash all the planning in the world.
3) It's the coach's job to get them to the start line healthy. Again, luck can play into this but regardless, this a major part of coaching. This includes reducing academic stress, precautionary things to hopefully avoid a virus, etc.
4) I agree. It's a common mistake of inexperienced coaching. Like waving the magic dust of "it's the state meet," will suddenly allow a kid to drop 40 seconds. "What you are is good enough. Just give your normal best."
5) Again, a big part of coaching. It has to be addressed throughout the season or an attempt to minimalize this at state many times has the opposite effect. I would add that inexperienced #4-#7 guys have to be prepared that it may feel like they are getting buried and can't panic. Many ahead are individuals and trust yourself and training and stay the course regardless of whether it feels like you are getting buried or not.
6) Again, I agree. Fewer non-team qualifiers and no exceptionally dominant team opens things up.
Excellent list that you provided!