It’s not a bad idea, but you’ll need something more sophisticated.
So all you have to do to avoid surveillance is to make a bunch of connections so the system gets overwhelmed and ignores you?
Terrorists (as well as a CIA director) have for years used a simple trick to communicate without leaving suspicious looking metadata: https://www.washingtonpost.com/news/worldviews/wp/2012/11/12...
I find this type of legislation works like DVD copy protection: the innocent and non tech savvy will be disproportionately affected and it won't do anything to deter those with sufficient knowledge.
I calculate with 50% reduction from compression (After the required back-ups to comply with the law the number will be much worse for the ISP). That somone on VM 500Mbits using less than 10% of their connection for this could increase their log size by 200GB per day or 73TB over the 12 months.
You know, because of the... unpleasantness.
But no worries, you go ahead with what you're doing, UK. Good job. Maybe IBM can offer some technical experience in this area.
And the government would just ignore them because of lobbying