there can be no immediate decentralisation the way you want to put it. The moment an OSS system is being implemented there is a main contributor and a core team

there can be no immediate decentralisation the way you want to put it. The moment an OSS system is being implemented there is a main contributor and a core team of devs. It would take years for a system to be completely independent. Bitcoin is approaching towards this goal. But to think that decentralisation is useless because the devs along with the miners and users decided by consensus that a bug was indeed a bug is the wrong approach.