I doubt you will get anyone to commit to it, but I remember a tech interest story about a year ago that HP and IBM were beginning to dump manufacturers that didn't supply FOSS drivers because their corporate clients were demanding Linux compatibility and they had begun testing for it and adding it to specification requirements. Add to that a story only few months ago about Dell beginning to do the same thing and I did a little snooping out of curiosity.
IIRC Broadcom WiFi devices began disappearing from most laptops about 3 months ago (despite an apparent price advantage over Intel and Atheros). The Big OEM's Ink supply contracts infrequently (they don't like to disrupt major parts and carry multiple parts in their supply channel) but it takes about 3 months for a contract to hit the supply chain, particularly for manufacturers like HP that don't do JIT manufacturing. Dell part changes hit quicker, usually less than 30 days. And Broadcom was a big at Dell, holding court over almost every Wifi Sold by Dell for a number of years.
My laptop had issues over Labor day so I was looking at options at various manufacturers, one thing that surprised me quite heavily was the apparently complete lack of Broadcom Wifi at Dell now along with HP and others. Everything was Intel Wifi. This is especially surprising because in the past Dell has said there was a significant price advantage to Broadcom over Intel when questioned about Linux drivers.
I deduced that Dell has finally dropped Broadcom because of Linux compatibility, but that may not be the reason. Either way something has happened in the supply contracts to make Broadcom FOSS drivers, something big because they were adamant in the past they would never FOSS drivers. Maybe I'm over optimistic, but HP has been talking about Linux drivers being a requirement for a year or more.