I don't see how the Antennagate can be qualified as "acceptable" since it caused a big public uproar and Apple had to settle a class action lawsuit.

https://www.businessinsider.com/apple-antennagate-scandal-ti...

it didnt end the iphone as a brand, or end smart phones altogether though.

how much did that uproar and settlement matter?

Mobile phone manufacturers were telling users this long before the iPhone was ever invented.

e.g., Nokia 1600 user guide from 2005 (page 16) [0]

[0] https://www.instructionsmanuals.com/sites/default/files/2019...

The important difference is that in your example, it was the manufacturer telling customers they're holding it wrong. With LLMs, the vendors say no such things - it's the actual users that are saying this to their peers.