Right - if Shake Shake complained about the $0.99 hamburger, it would be implying "... which is a perfect substitute for our $8 burger."
The issue isn't two laptop stands. It's that one laptop stand is claimed to be a rip-off of another - ie too similar. But it's cheaper so if it's too similar than the first one was a rip-off for the consumer. (ie same product, worse price.)
Yes, one man's rip-off is another man's profit margin but nobody is owed their margin. They can't expect anyone else to cry when their market-control is broken.
I think the issue is that Amazon has access to their sales numbers. Normally a competitor would have to put in work to infer your sales numbers from, say, an incrementing identifier in the receipt, and you would have some recourse (prevent information from leaking as best you can).
It seems to me there is an obvious conflict of interest.
Consider this; if an employee left to work for a competitor and took such precise information about online sales with them, it would be illegal.
