I implore people to watch the teardown guide itself, which is way more nuanced than the clickbaity The Verge article.
I'm not a fan of the use of glue in the joycon sides and the fact that the color strips under the controllers are hiding screws. The bigger complaint is the battery glue, especially because you can imagine aftermarket parts with bigger capacity could be a thing here. I definitely wouldn't open this thing unless it has a problem.
Some components are still modular, which is nice. I can't imagine the sticks not having changed design is great, but it's entirely possible they're way more durable, which the teardown acknowledges. Keep in mind that, while all controllers can drift, most controllers don't fail that way. It's possible to build this type of stick without widespread issues. Time will tell, though.