Well, that has never been the case. The algorithm of the network is defined by the most widely used implementations, which so far has continued to be Bitcoin Co

Well, that has never been the case. The algorithm of the network is defined by the most widely used implementations, which so far has continued to be Bitcoin Core. Bitcoin Core is maintained by a group of humans, who use some form of decision making process (whether it be implicit or explicit). The more effective that decision making process is, the more reliable and durable the system will be.