People who understand Bitcoin realise that "blockchain" isn't really a technology

wtf
of course it is a technology... doest matter if it is simple or not.

at some point of the history, a wheel could be called "technology"... at my viewpoint, any possible solution to a problem is a technology.

Definition of technology
plural technologies
1
a : the practical application of knowledge especially in a particular area : engineering 2
b : a capability given by the practical application of knowledge
2
: a manner of accomplishing a task especially using technical processes, methods, or knowledge
3
: the specialized aspects of a particular field of endeavor