The notice has a list of files and says that they were copied from ffmpeg, removed the original copyright notice, added their own and licensed under the more permissive Apache license.
Maybe because if the ffmpeg people say they have a reason and they've waited 1 year and a half for compliance, we trust them more than whoever relicensed their code without permission.
I didn't downvote. I suspect people did because it sounded like you were defending ILoveRockchip's actions, based on either 1) not understanding what they did, and/or 2) not having access to the facts. People get snippy about abusing Free Software.
The notice has a list of files and says that they were copied from ffmpeg, removed the original copyright notice, added their own and licensed under the more permissive Apache license.