When I pay near $1000 for a phone, you're damn right that I have a sense of entitlement with regards to quality.
No one is saying you shouldn't get your money's worth. And if it is repeatedly provable in a reasonably scientific manner that there is a noticeable difference between these chips, then by all means, return your phone, and try your best to get a replacement with the better of the two chips. (Don't expect Apple to open a special drawer with TSMC chip phones BTW, and good luck getting one on your first try.)
But 24 hours is hardly enough time to make an educated decision. Can people just take a freaking breath for once? The ink on the story is barely dry, and the differences in these chips, if there are actually any, are clearly not black and white yet. But does that stop the ever growing legion of FUD driven, knee jerk reactionaries from flying their outrage banners, gloating, thanking God/Allah/Vishnu, cheering, booing, threatening litigation, and generally making asses of themselves over nothing (so far)? No. Is it all so predictable and tiresome? YES.