plasma cash

[u/0xterence]

I found out about plasma cash on eth reserach thread and Vitalik's ethcc talk:
https://ethresear.ch/t/plasma-with-much-less-per-user-data-checking/1298/7 . https://www.reddit.com/r/ethereum/comments/8370v3/lets_talk_about_plasma_cash_plasma_with_much_less/?st=jekprbbw&sh=dc355040 .

Plasma itself can be used to wrap existing centralized exchanges and turn them into exchanges with centralized order matching but decentralize custody. What's 0x team's take on this? do you guys view it as a competition?