> This is a contradiction. There is nothing "minimal" about a requirement that excludes every device but one.
I don't get your logic. Requirements are a choice. It's very easy to create requirements that exclude every device but one.
Example: "It has to be the Samsung Galaxy S23". Done.
Now you can disagree with those requirements, but that's completely different from saying that the requirements are wrong.
I disagree that such requirements are minimal. Nothing prevents running GrapheneOS on a device with lower requirements. It's a questionable choice by the developers restricting the choice for users.