Why in all of hades would you force your entire eng org to only use one LLM provider. It's incredibly easy to run this stuff locally on 4+ year old hardware. Why is this even something you're spending company money on? Investor funds?
It's weirdly common at young startups. Interviewed at two places in the past few weeks where cursor was required. Funnily enough the reason for hiring was because they needed people to fix things ...