Apple M1 mackbook display failure

Consumer products, their warranties, and their extended warranties work in a predictable way.

Warrant-able implies, but does not guarantee, High Quality:

Consumer product makers build high quality products. You can tell because the manufacturer is willing to stand by their products and repair or replace them (but only for defects in materials or workmanship) at manufacturers expense for a stated warranty period.

For Apple Macs in most countries, that period is one year. That is the total responsibility Apple or any manufacturer has to you under law. Assumptions about additional responsibility of Apple or any other consumer product-maker's products working longer than the warranty period are not accurate. The amount you paid for the product has no bearing on this. The rules are the same for a car costing US$20,000 or more.

Electro-mechanical devices fail at random, arbitrary, and capricious times.

The most frequent reason for most failures is 'just because'.

Your specific failure is most likely caused by an advanced scientific principle called ...

... 'bad luck'.

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If you want a really substantial lesson how this this works (or more precisely how this stops working) own an older used automobile.

You said Apple replaced the first failed screen under warranty, which is usually no cost to you.

If you had subscribed to AppleCare Plus coverage when it was made available you, your co-payment would be only US$99. Since you BET you would not need that, you saved about US$350. now that you have a non-covered failure, the TOTAL amount adds up to almost the same. the US$350 you bet you would NOT have to play Plus the US$ 99 co-payment is very close to the actual cost of the un-insured repair.

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It's not an inherent defect unless Apple says it is, in which case they tend to issue a limited time service program to cover it. [Which they have NOT in this case.] (Or a court of competent jurisdiction rules that Apple knowingly put out a defective product.)

Readers here are other Apple users like you. pleading your case HERE is just "preaching to the Choir" and has no impact whatsoever. Not because we do not care, but because we are not insiders, and have no special sway with Apple.

It's true that consumer warranties are a sad, sad shadow of what they were, say, 20 years ago. Apple, particularly, tends not to admit to bad hardware unless and until they are dragged into a class action suit. (Batterygate). It's a uniquely American problem, poor warranties and forced arbitration. Most first world companies demand that merchantability and fitness for purpose be covered - not so in the US, and if so, for a very, very short period of time. Caveat Emptor!

you have the ability to turn the tables next time. 

Next time you buy a Mac, buy AppleCare PLUS at the same time. Then for the first three years, renewable, if the screen gets cracked you pay only the US$100 technician time, and Apple has to eat the cost of the display. A catastrophic failure like "fell down the stairs" costs only US$250 co-pay instead of the about $1000 retail repair cost.

But you have to sign up within 60 days of purchase, and Apple reserves the right to inspect your Mac if not bought at time of purchase. If you could buy AppleCare PLUS  any time, only users with failures would buy it, and that would ruin the 'insurance effect'.