Great proposal and thx to the TWG! 
I’m a big supporter of L2 and especially Polygon, so ofc I’m very happy we will hopefully soon have more liquidity there
Any specific reason for using Uniswap and not Sushi or Quickswap for example with maybe additional Sushi/Quick rewards from them? (I think it was Quickswap that provided nice rewards in the early days on Polygon and was interested in further collaboration. According to Coingecko Sushi currently has the best liquidity on Polygon, +/- 2% spread with 500$, not good but at least something and they also seemed interested in a partnership, although that post is pretty old already PTIP-36: Migrate PoolTogether Uniswap V2 Liquidity Mining Program to SushiSwap - #17 by Andre)
Personally I don’t prefer any specific DEX, I am using 1inch and other aggregators myself (and can only recommend anyone doing the same) but just something that came to my mind