These are 20+ year old GPUs though. How many people out there are seriously using an ATI Rage with Linux Kernel 6.0+? There isn't even a Windows Vista ATI Rage driver.
That and I wouldn't be surprised if some old VIA integrated systems are still running embedded / industrial applications and would prefer the latest drivers just to maintain the basic security of whatever they are running (eg power plant infrastructure). Seems unnecessary to cut such systems off like that.