no . it's not worth the trouble while going for dexterity instead of energy . i've tried to work around it , but there are better spots where those hard skill points can go in order to be more efficient .
0 defence sucks while going head-first into fights , compared to having some defence and getting hit less (even if it's between 10k and 50k , it makes a big difference in early and mid game ). focusing mostly on dexterity until around late mid game/end game also makes TF's energy factor boost worthless , same as the flat dexterity boost that is not high enough to take it into consideration and compensate for the zero defense , even if it comes along with some flat HP
there is more than just one way to play a TFS build . Lanaya is one of them , balanced between damage and defense
TF goes well on an energy/%spell damage/pierce based TFS build , but getting into hit recovery every few seconds/getting smashed by ranged opponents didn't feel that exciting to play , even if the kill speed goes a bit higher .