Of course it’s your prerogative to think that these companies are deceiving customers into thinking that their product lines are different while they’re not. But my take is that Oticon never said anything to anybody that their product lines are different than the Philips line, nor do they say that they’re the same products. It’s us common user folks here who are debating this point here because Costco HIS’s make the claim themselves, not Oticon nor Philips.
And while it’s also your prerogative to take the negative view and dismiss that HA companies’ whitepapers really as just a marketing spin and mean nothing, I think it depends on the whitepaper. I’ve seen some whitepaper to be very wishy washy and not providing very good clear details on how the technologies work (like the Starkey whitepaper on their Genesis AI). But I’ve found Oticon whitepapers to be informative and revealing enough to give you a good idea of the inner working of their technologies at a high level. The Philips whitepapers I’ve read also take on the same vein of the Oticon whitepapers, revealing enough about their technologies overall to be credible.
So let’s just agree to disagree that even if the whitepapers mean nothing to you, I personally found the Oticon and Philips whitepapers to be informative and meaningful and truthful enough to me as an engineer.