>For many years we had to rely on our own internally developed fork of FFmpeg to provide features that have only recently been added to FFmpeg

I really wonder if they couldn't have run the fork as an open source project. They present their options as binary when it fact they had many different options from the get go. They could have run the fork in an open-source fashion for developers of FFmpeg to see what their work was and be able to understand what the features they were working on was.

Keeping everything close source and then contributing back X amount of years later feels a little bit disingenuous.