Think Lazy – Open Letter to Apple Safari Team
medium.com
medium.com
“features we have decided to not implement in part due to fingerprinting concerns”
They don’t go into detail, likely because that is a post about tracking prevention, but I guess security is another part for some of these.
They also left the door open by saying “Some of these features may reduce fingerprintability down the road which would allow us to reconsider”.
I would guess that if Google, Microsoft or Mozilla (whichever of these wants to see these APIs implemented everywhere) gave them a call, they would be open for discussion. If not, that IMO would be the time for calling them out.