You have the same view as mine, Bitcoin is decentralised and what the OP is trying to explain is a different issue entirely. Bitcoin is and remains the most decentralised cryptocurrency in the world and has been able to preserve it for years. That is why people and developers are always careful of scaling it better like what other altcoins are doing for better purposes and functions. They believe that leaving it as it is in most cases is the best answer to preserve its decentralization nature which is one of the core goals of Satoshi in creating the coin.

If they could be determined this much despite all the flaws noticed and what altcoins are enjoying with their upgrades, I think it's rather worth celebrating and not ridiculed.