Have they reached this point with the "online moral-indignation brigade" yet? Maybe not, but it's been 5 years since the Snoopers' Charter, I don't know how many since the porn-blocking promises and about 13 since the first pledges in this area by a Conservative party, with no significant progress to show for it. That's a lot of time even in political terms.

I really dont see anyone in the electorate clamouring for any of this stuff. Announcing the same policy being told it is a shit idea and announcing it again 6 months later is much harder to sell than the recycled spending (which they tend to just lie and say it is in addition to the last lot they announced anyway). That said, the electorate dont actually care much (unless it is a penny off the price of a pint or something) so it is hardly a humiliation when these ideas go nowhere and it makes the government look busy.

I can only assume that the driver is the security services, or just recycling past homework to look busy. As noted in many other comments they try all sorts of seemingly stupid ideas in this space - banning all encryption has failed countless times, adult verification is already a thing on mobile networks, and logging every online activity has slipped through and passed.