I think it's a complex problem. A lot of these "buzzwords" are actually quite semantically rich, if used correctly. "Synergy" refers to the principle of mutually advantageous reinforcement between factors, like the "three sisters" technique in agriculture. "Paradigm" is a concise word to denote an established, standard framework or perspective.

They are technical jargon, when used correctly. Used responsibly, they can convey a great deal of information with high semantic density. The problem arises when they're transformed into buzzwords, layered in confusing or abstract ways.