Even rails kids can write in such fashion if they want. The fact that nobody cares makes it pathetic though.
Obviously, many people will care about Charles Bloom's opinions. _That_ is the difference. Out of respect of his work they don't mind whatever style he uses. That's enough for them.
Why wouldn't it be? Why would they care if others find it pretentious? I suspect the author itself could care less about those who find his writings pretentious.
Why do you care?
All I am saying is that you cannot impose on others the respect you give to a third person.