Theresa May says there should be no "means of communication" which "we cannot read" -- and no doubt many in her party will agree with her, politically. But if they understood the technology, they would be shocked to their boots.
Perhaps we should no longer assume that politicians 'do not understand the internet' and assume they are asking for changes in the full understanding that they don't achieve the goal for which they're introduced.
As long as the situation that's being created is more favourable for them than the current one it's a net benefit.
Short-term politics is the biggest threat to UK society at the moment and the current government is particularly good at it.