To follow up on this, we did update the pricing now https://ffmpeg.guide/pricing which should be effective from Nov 1st. Gonna try to move some more lifetime deals at a slightly higher price before then
As someone with a project at work that involves setting up an ffmpeg project in the future, I'm now expecting to talk to my boss about expensing this and I think it's at the perfect price point where it won't take too much effort to get them to budge.