. 15% of the new tokens are distributed to the SP holders as rewards for staki

That's true as we can see that we are getting APY at 2.96%. Although APY is less but at higher staked SP, it would amount to higher returns .

With a large SP size, community members can come together and reward others which makes the community to be independent in the future.

You have made a valid point.

Your explanation of voting window is commendable.

Good luck