It is my belief that technobabble makes for good padding, but makes a horrible plot device.
Technobabble that does nothing to advance (or at least enhance) the plot or characterization is just alphabet soup. It's not good padding, and it's definitely not good reading.
One of the best instances of TOS technobabble I ever saw was where Scotty told Kirk that something had gone "haywire." Kirk replied, "'Haywire' is not an acceptable engineering term, Mr. Scott." So Scotty explained the situation in more normal terms, but it wasn't full of meaningless babble.