[VBprogrammer]

I feel it was entitled because you asked for them to:

a) spend a non-trivial amount of time creating a work around for you.

b) release artistic control of their content in a way in which it will be shown to people alongside adverts and whatever else these platforms decide.

c) a video would likely be larger than the original generated version, or suffer from video compression artifacts.

[Hnrobert42]

It was a simple request with a good explanation. The author can say no.