I've got Ublock Origin and funnily enough, the LongReads example AMP page loads only marginally faster than the "full" one. I don't understand why people can't

I've got Ublock Origin and funnily enough, the LongReads example AMP page loads only marginally faster than the "full" one. I don't understand why people can't just remove all of the crap from their main pages rather than relying on this Google-sponsored equivalent?