... Warren Buffett...
I like reading the materials of Buffet and Munger. There is much practical wisdom in their writings. But you are completely right: they are humans as well with the faults that come with being human.
...
His later messages were more nuanced ('perhaps not understanding new digital things that good').
It is clear he does not understand modern technology. He did not buy Apple, Facebook, ... I think he only bought Microsoft because he became friends with Bill Gates. He does not buy what he does not understand. At his age, it is very difficult to understand what Bitcoin truly is.