If someone wants to upgrade the Bitcoin network, they need to get the consensus of different stakeholders in the community. If there is no consensus, it is easy to cause the division of the community. This is the decentralization of community governance.
What you noted above sounds like a disadvantage or a drawback to the decentralized system, but you treated it as a compliment. What happens if such scenario repeats often and curses more frequent division in the system. What would be the fate of the decentralized system or bitcoin.