I agree with everything in your comment.

Regarding necessity I think it should not be interpreted too strictly. Rather, I believe it means something like this in EU law:

“Necessity implies the need for a combined, fact-based assessment of the effectiveness of the measure for the objective pursued and of whether it is less intrusive compared to other options for achieving the same goal.”

(Quote from: https://edps.europa.eu/sites/edp/files/publication/17-06-01_... )