Actually variable wattage puts the same power into the coil whether the coil is hot or cold. Or whether there is airflow or not. TC takes both into account and throttles back the wattage if the temperature goes too high. It also gives it more wattage if the temperature goes too low. And if the wicking ever starts to go dry for any reason, it won't allow it to fry itself to death. Lots of good reasons to use TC actually.
Yeah sure someone can use it and may find it better for some reason but i haven't seen any advantage in he vaping experience......maybe if someone does veeery long puffs and depending the coil he use then he may need tc to keep the temps stable and nice to their liking....about the vape temp for me I just adjust it to my liking with the wattage and the coil setup I use....my vape never gets warmer than what I want to be and I don't get dry hits ever but someone may experience that I guess...
I guess if someone use huge mass coils would need to pump up the wattage up to get fast ramp up time but then the vapor may be way to hot during the puff and that's where normal wattage won't work good for someone....there is wattage curve tho that can solve this easy...
But yes temp control in a situation like that would be ideal