How is using an external service to debloat pages okay but AMP isn't? Feels ass-backwards to me.
That's significantly different than debloating your website and remaining in control of the traffic, but you don't receive the SEO boost as a consequence. Even if you make your website faster than it would be if you were using AMP (which is not that difficult to achieve), you're still being punished for not giving control to Google.
I don’t think google should be in charge of that, especially if they use search results as a way to force adoption.
Countless posts have been made by site operators who needed to adopt AMP to remain competitive in google search results.