This is a good observation. I recall that around 1992 and after Ligier cars had fairly strong or commendable results. In 1992 they improved over 1991 significantly, and in 1993-96 they had outright a whole bunch of strong podium finishes. The car was probably good, as well as the drivers. And don't forget the dominant Renault engine they could use until end of 1994. How could such a good team, and the last all-French team, disappear after that?