The government is only obliged to 'discuss' the issue raised by a petition that has enough signees, that does not mean that they will in any way concur with the petition.
The ICO is not a he, it is Elisabeth Denham, who, if you read the article is more in line with the government's plan than against it.
Legally, I doubt the government has ever worked for us, though that should be the case.
I also diubt that any in the government consider that they work for us beyond allegedly receiving a mandate each election time.
Even in the Fifth Republic, where there is a constitutional requirement to listen to the people, they have slapped down most of the demands from Les Gilets Jaunes with ever increasing force.