I do like "engineering solutions" (ex: not storing too much data), but I start to think it is important to make more effort on more broad social, legal and political aspects.

That's its ostensible, purported, show purpose.

The real purpose is to break end to end encryption to increase government surveillance and power. "But think of the children" or "be afraid of the terrorists" are just the excuses those in power rotate through to to achieve their true desired ends.