Other extenions haven't requested it because they haven't gone throught the "data disclosure" process yet (check Sponsorblock's and De-Arrow author's response in my discord server). This extension is just among the first few unlucky ones. Mozilla are actually considering changing this labeling system to make it more clear to users about what is going on.

Ajay, the author of SponsorBlock and DeArrow, has also raised this issue with Mozilla. He explains how the new wording can make an existing extension look like it suddenly started collecting new data, without making clear which websites it can access. You can read his post on Mozilla’s forum here: https://discourse.mozilla.org/t/the-new-data-transmission-permissions-seem-to-be-misleading-to-users/149410

EDIT: Hey, thanks a lot.