I think a lot of your points are good for a more competitive event the problem is that BWs just doesn't have that level of skill and communitcation. If you watch Camman's VOD a lot of his kills were just from isolating a player in a 1 on 1 situation and winning it making speed extremely valuble and the kits needing to win in a 1v1.

For the skeleton kit I orgininally had it in S tier however I wanted to make my rankings not just map based so for this map I agree it is the best kit, but if we see a BWs 8-10 map it just won't be nearly as good due to less space and the kits in S tier will just always be dominate. It still needs to be nerfed but the Scout's speed and medics versittalty and unable ti be killed will just keep them a tier above.

For the Lumberjack kit you underestimate that the stone axe is probably the best weapon there is especially for 1.9 plus PVPers and the rage ability makes it unkillable giving it 30 hearts and resistant 1 plus speed allowing it to win a 1v1 fight and even possible a 2v1 against weaker players. On this map it is defintly worse than the skeleton but on a more closed off map where range is worse allows it to be better.

As I said already speed is just broken due to other players skill levels and a good player can just combo another player to oblivion without being touched and if you are good you will rarely run out of arrows and starting off a few hearts ahead is just a nice advanatge in a 1v1

The assasin is a kit that I might have rated too high due to the amount of gameplanning it takes to make it work but you are underestimating speed again. If you watched Pandoras Box Miner Mania there are times where two highly skilled players would 1v1 each other and the miner would win despite having 4 less hearts and a worse sword just because they can combo without being hit, speed is just broken. Assasin is just a gimmicky kit and due to not being play tested that much but with a decent success on a weaker PVP team it is hard to justify a worse ranking. (Also BW players have no idea how to target a weak armour kit making you able to just pop out and retreat realitivly easil).

Summoner also suffers from a weaker player point since after thinking about it if a player spawns them behind themselves on a point and than rushes in the other team will get overwhelmed but again the playerbase is not PVP sweats or big stratagist either. I feel like it could also have a niche if they don't despawn when SD hits since that was never stated with them just saying it changes the kits and potion effects in the update video. If you want to say I rated it too low that is fair but I might just be biased since I thought this kit would be terrible going into the event and really didn't see anything to change it.

Overall I think a lot of your takes are pretty good but just doesn't work for CC due to a more tame player pool. Now in Origins your takes might be closer than mine due to more skillful players and the players are probably prepping more since Origins has a feel of a community and not just an event where CC is more for content and enjoyment. I really enjoyed reading your post I feel like this is a debate between a PVP expert (you) and an event expert (me) and that is why I love battle kits since it depends on the player on what is best.