IMO, I think it is a technical problem and I have no expertise about it but based on the information that you give the Solana Network was very congested at that time. meaning the system was flooded with more (400,000Tps) Just imagine it was a huge transaction in the queue that waiting to be processed correct me if im wrong, if the Network is not designed to handle that huge volume of transactions what can we expect? I can't find any hole in relation to decentralization/centralization it is a simple system glitch that needs to be improved and fixed so it's not an issue of decentralization/centralization which is portrayed by the OP. I believe that the Solana community is already enlightened about that glitch thats why instead of going down the SOL price achieve another ATH.