Guess, that is true, before you need a feature you generally tend to not notice it at all. Currently there are 4 tetherless classes (despite one of it is obviously very connected to the Shadow lore it is a neutral class) which can change sides fairly easily.
While all other classes has no such conveniency. 50% forgetting return is a bit punitive in that regard. Perhaps similar classes should convert among each other once again, in order to be able to alleviate that. Or at least a better percentage return while changing to such a class.
I shall not hide that, I am heavily considering the case of character I am playing and currently remaining as a Sciomancer, rather then being an Ascendril seems far more economical on the outset. I would like to know what other people think about while going from one tether to another. Are the conversion costs fair?