I don't know whether his popular science work is plagiarized or not but about his thesis, it seems somewhat stupid To punish him

So many things in physics have to be written in a very specific manner , to convey the meaning of the precise concepts being used. in such cases, it is a very common practice to copy the sentences used before, in order to ensure that everyone understands the meaning in a precise manner.

So then to call it plagiarism doesn't make any sense