He may as well say, "Enough of supporting iPhone and iPad users. I'm sick of it." Good luck with that.

What's the problem with encoding in two or three different formats? How many gigabytes of videos are we talking about?

It's not like you have so sit an manually shuffle bits around. Just leave the encoder running, no need to bill your client for that time.

He's a consultant who helps tune encoding parameters for various use cases. So yeah, multiple scenarios to plan for means multiplying his fee.