Well working with your laptop on your lap is not practical for most people to begin with, therefore I'm not seeing a problem with providing a solution to at least have a better typing experience. And I don't think what I described is that uncommon, there are plenty of people using this combination... https://miro.medium.com/max/1200/1*v0kF6eGo2AO1YKsEP9gd_A.jp...

Obviously if you're having to work with your laptop on your lap for 8 hours a day without wanting any external input devices and still require a very specific typing experience then there might not be too many options out there...