I mean at least it's still more flexible than just 1 staking pool we have right now. With those dynamic ranges I am guessing you want to incentive longer staking the same way in Dan's proposal? In my opinion there will be conflict of interest between 1 month stakers and 5 years stakers as 5 year stake have so much leverage against shorter stakers with less tokens invested and it will be way more complicated to implement and for users to undestand especially new ones, we have nowhere near as much capital as BlockOne for development, testing, and educating users. The two separate pools is compromise between our current one and Dan's proposal.
13 week is arbitrary, so does 1 month and 2 years previously. 7 day voting window is arbitrary too. Arbitrary =/= bad. For the second pool period if the consensus thinks it's too long then shorten it next HF, if it's too short then prolong it next HF while the first pool period will simply follow the voting window period.