I understand why you'd misunderstand it to be honest, because so much has happened - including the most drastic change to our lives we'll ever see and that any generation has seen since the 1940s - but yeah, that's what happened.
The previous UK plan would have caused 'hundreds of thousands of deaths' and overwhelmed the healthcare system, a new report estimates.
www.businessinsider.com
The bold bits were the only measures imagined for a mitigate strategy.
Basically, track cases when you can, then tell everyone who gets it to quarantine at home but put no wider lockdown measures in, and ask the elderly to stay 2m apart from everyone and - famously - "just wash your hands". That was it. Nothing else.
And you're right - it's hard to believe but that's what they initially wanted to do. That's why the Tories were criticised for it.
Make no mistake, the Tories - specifically Cummings enabled by Johnson - wanted to let this thing run riot.