but devs have no power at all, if a group of devs don't produce the software that users and miners want to use, some other group of devs will...
This is a fantasy, unsupported by six years of history.
History gives us btcd, well developed, but completely ignored and irrelevant.
History gives us Mike Hearn, who is damaged, alone, and bitter.
History gives us Gavin Andreson, unsure of his own identity, not committed to Bitcoin, comfortable in his sofa of virtual coin.
History gives us XT, Classic, and Unlimited, "let's put on a show" high school science fair projects put together by Cypherdoc, Peter R, the Toomim brothers, and other pretenders/scammers.
That leaves the Core devs. Cryptographers, C++ experience, professionals. Not perfect, but responsible for everything that BTC lovers hold dear.
The idea that you can stop a car on the street and turn the occupants into developers of the next great cryptocurrency is an exercise in
denial
delusion
wishful thinking
fantasy
If you want a coin developed by a random group of computer hobbyists, choose among the 1000 alt coins.
If you want a virtual currency with an established network and infrastructure, choose bitcoin and the people who brought it to 1200, 420, and 6 billion dollars.