The conflation of Thiel's libertarian ideals with his pursuit of life extension technologies was made by Thiel himself, as quoted in the same article:
“I stand against confiscatory taxes, totalitarian collectives,
and the ideology of the inevitability of the death of every
individual,” he (Thiel) wrote in libertarian journal Cato
Unbound seven years ago.
The tone of the article doesn't seem to be mocking him, so I don't think it is a hit piece. If Peter Thiel does literally believe that injecting himself with the blood of young people will extend his life then blame him for that, not the people reporting it.
