I think everyone's trying to work together, there are just different views on the best approach to take that will launch a secure, validated chain. There's no value in being "first" since all the BPs have already committed to only launching one mainnet we call EOS. I'd personally like to see many validated chains up and running and just flip a coin as to which one becomes EOS. If they are all validated, they should all be the same anyway.
Right now the focus seems to be on really testing these networks hard to ensure we aren't missing anything.