I didn’t read it that way.
Pointing out that being able to buy the most expensive model and then risking harm to it is something not everyone can afford is not stiffling the discussion. It is the discussion.
It is hard to be aware of one’s own biases due to personal circumstances. It is a “fish can’t see the water it is swimming in” kind of situation.
Many people I know don’t consider phone protectors on an aesthetic axis, but on the “what is the probability that this slippery brick falls and shatters and then I won’t have a phone for the next few years at all”. If you are financially in a situation where you can buy a new flagship phone at any time you might not even think about this viewpoint.