Of course no, the search is handled by a different team, but does that team also work on the frontend ? I would expect them to have a quite different set of skills from those that do frontend work, at least at Google's size.

And if not the case, I would expect at least one team to be responsible for the final result

Generating a list of video IDs is different from rendering them on the page.

Well at least now I've got you up to 2 teams being acceptable :)

Being deliberately obtuse, or ignoring the context?