That is ONE reactor that was of a design many years out of date at the time of the failure, a failure where the people at the controls turned off the safety controls, then turned off the back up safety controls, then intentionally put the reactor in an unsafe state.
France gets 76% of its power from nuclear energy and has never gone above 4 on the INES scale, with an average clean up cost of 24.7 million USD[1].
There needs to be a Godwin's law for the Chernobyl. There are so many caveats and "yes buts" and weird political contexts to everything about that accident that it really isn't helpful when talking about nuclear reactors (unless you're talking about how politics and human intervention can screw up the best laid plans of mice and men).
[1] https://en.wikipedia.org/wiki/List_of_nuclear_power_accident...