Few will realize how Apple milked you twice - once to accept the horrible design (that they created), and again to accept how wonderful they are for eliminating the problem.
The MacBook notch is a clever design that increases the size of the screen without increasing the size of the overall case. There are some, relatively minor, downsides.
1. Some applications have an unusual number of menu items. The system takes this into account and renders those menu items to the right of the notch. In many cases, those are the less often used menu items “Window” and “Help” so the impact is lower.
2. When there are large numbers of app icons in the menubar, they may not all fit and some are truncated. This has always been a problem with that feature and many people have solved this by using utilities such as Bartender that hide extra app icons and move them to secondary panels.
3. There is an additional visual element on the screen. Many people quickly learn to ignore the notch and soon forget that it is there. For those who are bothered by it, there are a couple of simple ways to reduce the visibility of it. One method is to change the resolution of the screen so that all content appears below the notch. The downside of that solution is that there is less screen area. Another method is to use a utility to turn the menubar black. This makes the notch blend into the menubar so that it is much less visible.
The notch is not bad design: it is a design compromise. In reality the presence of the notch increases the overall screen space with the reduced bezel. That electronics wizardry and physics do not currently permit under-screen high definition cameras means that you need bezel space for it. That Apple managed to get it to be ~35mm x ~9mm is impressive. On every other laptop in the world with a webcam at the top, that ~9mm is required forehead on the laptop, meaning at least a ~9mm bezel.
And Apple is not rushing to replace this. After all, we've had three generations of Apple laptops released with the notch. Sure, if/when they prove they can do a quality under-screen camera, they will update this (after they update the iPhone family). But calling this "bad design" is suggesting that you could do better.
Compare phones, where manufacturers have actually created a narrative that camera cutouts are a desirable feature. Maybe people who bought new phones because they like the cutout design are getting milked twice.
https://www.google.com/search?q=apple+incremental+innovation