It does? Based on all the data that's available about how safe and effective it is when used for a period of years or decades?
Until there is longitudinal data from a large sample size over a period of decades, it's not really reasonable to make projections about how effective and/or toxic this drug is going to be. Drug metabolism is extremely complex, and serious adverse reactions that only show up in a minority of users often do not appear in the literature until well after a drug has been released -- even if it's a significant minority. Look at
phen/fen.
I want this stuff to work as much as anyone else does, but I'm not going to get all excited about it until there's a reason to be, because I think it's pretty unlikely that any single drug is going to work really well for a huge percentage of T people without some significant side effects, and spending all my time wondering about whether some cure in the future is going to change my situation, just makes me spend more time thinking about T. If it works, great, but let's not let our hope get the better of our common sense.