I haven’t got time to debate the ‘genius’ of F6.
I do wonder where you are getting those numbers though. If your figures relate to gzipped/compressed files then that is a bit misleading as that is very often not enabled by default on servers. So unless someone is setting that up manually or going through a service like Cloudflare then they will likely not be realising those savings.
These are the blank page file sizes that I have had reported to me for the different frameworks. (These may be from slightly earlier versions so I will happily update if there is any anomaly.)