Again, its possible within the case of Blockchain Technology because BITCOIN is already explained a million times on the Internet and creating a thesis regarding it would just be the compilation of ideas within the Internet. The book that will be published within that book must not be plagiarized in any way and compiling ideas would not be fair for Bitcoin.
This can be said about any subject and topic, everything has long been written on the Internet. But that doesn't mean people have stopped writing dissertations. If I was still studying now, I would love to choose a similar topic, as it would be another way to tell more people about Bitcoin.