I changed my vote from no to yes after giving it some thought. Originally, I thought the wording was just a little too vague, even if it's mentioned that this was done intentionally.
After reading some of the comments and more of the text below the proposal, I decided to vote yes at this stage to start a conversation. I would need a more detailed proposal to vote yes at the next stage.
The pessimist in me thinks that if there were a human league, botting would just morph into something more like a battle helper. In fact, little birdies whisper that this is already how players in the top guilds operate. Not with Xbot, but with private ones. It's worth exploring what options there might be, though.
I'm someone who uses botting services to auto-battle for me sometimes but does think it would be cool if there were a way to ensure that only real people were playing in certain circumstances.
RE: Splinterlands will try to implement anti-bot measures in Modern format.