Revolution or evolution?
Gustavo Naveira has played a fundamental role in the evolution of tango, especially in the development of what is often called Tango Nuevo. His analytical and technical approach has transformed the way tango is taught and danced, introducing new concepts and a greater understanding of movement and musicality.
It is likely that Gustavo Naveira deserves more credit for the resurgence and renewed popularity of tango (from the 1980s through today) than any other dancer/teacher/performer/choreographer. Since discovering the dance in the early 1980s, Gustavo has worked tirelessly to bring tango to new audiences and to evolve the dance to a higher level of technique and structural complexity. He has also strived continuously to ensure that further development of the dance is grounded in a solid historical foundation. For this reason, his dancing always has a classic look, even when he is executing the most modern and surprising steps.

Gustavo is probably the teacher who has influenced tango-dance teaching the most, in all its styles and worldwide. He managed to clarify concepts about the structure of the dance. This has allowed many to understand tango dance better, and teaching levels have risen considerably thanks to these concepts.
As early as 1999, the main Argentine newspaper Clarin stated, “you could say that three stylistic tendencies contend for supremacy [in tango]: Urquiza’s style, Almagro’s style and Naveira’s style.”
There is even a wikipedia article about him: https://es.wikipedia.org/wiki/Gustavo_Naveira