Partial Mismatch in Anaplan vs Scrum Methodology

Colleagues, hi!

Is there any specific reason why in Anaplan Way we change the terminology for basic definitions?

Project Sponsor = Product Owner

Master Bucket = Product Backlog

Sprint Bucket ? Not even sure as based on Anaplan Way training Sprint Bucket populates specific sprints in a release

This is especially odd when in one training section we use one set of terminology and in another - classic Scrum one

Is it possible either to align for an easier understanding or, at least, provide a "mapping" between two sets of terminology?