Agreed. I have been very pleased with the cleaner asyncio API in 3.7 though. Much simpler for people writing async code for the first time.
I suggested for something like asyncio.run() to be included much earlier than that but python-ideas is a dead end for actually getting things into python. Eventually yuri saved us all because he could demonstrate the usefullness of things on uvloop first.
Can confirm, 3.6 is where my office made the leap too.