One function of special vocabulary is for specialists to easily communicate. But another, important, social function is as a badge of in-group membership. If you use the words correctly (from the point of view of the group) you show that you belong, and that you probably know and understand all the other explicit and implicit rules of the group. If the word use spreads too far it loses this function and the group needs to find new words and expressions instead.
You dislike "gelling". You dislike "paradigm shifts". It would probably be a fairly risk-free bet on what you think of expressions like "optics" (as in "the optics of this decision is good") and the like. You dislike these words and refuse to use them. Which signals to management people that you are not management and should not be treated as part of their in-group. "gelling" works exactly as intended, in other words.
Asking for words to not be used like this is futile. It would be like asking people to no longer care about fashion (another in-group signal) or to not form groups of like-minded people at all.