Do you think "in a sense" that the EU nations should abandon SIGINT and stick to good old fashioned HUMINT? Or maybe a middle of the road position and just have the Five Eyes abstain from SIGINT?
Also yeah - the whole dragnets should be scaled back for various reasons. If you intercept and retain everything you have insane SNR that can prove counterproductive in the long run.
Very intensive spying on allies is impolite at best.
http://www.france24.com/en/20110104-france-industrial-espion...
And yet allies do it constantly. I'm skeptical that polite applies in this context when you consider history.
https://www.aftenposten.no/spesial/wikileaksdokumenter/artic...
I think your last sentence is hopelessly naive.