I really can't understand how the government can decide to postpone an election without the Senate's approval.
I guess the only option to do it was to invoke article 16. And clearly that is way too extreme.
The same way all the governments of the Fifth Republic override the Senate every time it tries to oppose anything. It's a routine procedure.
Would the right have cried bloody murder over it? Sure. That just means they'd end up with an egg on their face when the government is proven right and the epidemic ramps up.
From what I understand, the President of Senate was ready to refer everything to the Constitionnal Council, through.