Yeah, Trek originally got by with almost no technical dialogue - and it's just not at all necessary. Make a list of five other sf tv shows - or movies - that you like and see how much (that is, how little) technobabble is required to make them work.
There are three right there (for my tastes). The new Doctor Who
uses quite a bit but it always strikes me as employed for comic effect there. I may be cheating not to count it as an offender, but what the hell.