The way I see it, what with the whole ease-of-access to fix TF's, even if random, and the planned simplicity of fixing SSTDs they shouldn't really be a problem unless you forget/ignore them. The Treatment, Leithan Charm, and Fox/Frostfire are in a way "forced" TFing effects as they are a one time application but transform over a long time until completely transformed. A player might actually forget they have these effects if they have gone away for a while, only to be surprised when a TF occurs. Two of those can be nullified by taking appropriate measures, just as SSTDs will be fixable, and no one complains about these. Yes, the players don't choose to get the SSTDs like the above stated TFs,that is an issue for some, but when you think how similar they are promised/planned in how they work to other things, worrying about them seems a bit trivial.