If you would pay $100 more for a washer with a 50 year warranty, there would be a washer with a 50 year warranty. It really is that simple. So many people choose by price, then quality, the best thing you can say about appliances today is that they cost less in real dollars than the ones from the 50's and 60's. If you chose your appliance the other way, quality first and then price, the manufacturers would put in quality to get you to pay more.
Every single thing mentioned in the article if you compare an appliance "with" that thing from the 50's to one "without" that thing today, every time by leaving it out you can sell for less, or sell for the same as the competition and make more profit. Metal thickness? check. Motor quality? check. Anti-rust coating? Check. Durable control circutry? Check. Everything.
You want to change the market, then the market has to prefer quality over price, and pay for it even when there is a cheaper, lower quality alternative.