I don't think its dying, not by a long shot for all of the reasons everyone mentioned.
What I do think is that for most people, owning a laptop and an iPad has become completely redundant. Obviously there will be exceptions for specific people in creative fields, etc. And I'm speaking as someone that has both a MacBook Pro and an iPad Pro. I find myself using one or the other, but rarely both. And I'm gravitating more and more to the laptop because frankly multitasking, managing multiple file types in a meeting (PDF, word, excel spreadsheets), and file management completely stink on iPad OS. Note taking with the Apple Pencil is good in theory, but I find its painfully inconvenient in real life But that's for me: for someone that would use their "computer" to just watch Netflix, check email, and browse the web an iPad is perfect.
The other thing I used to think my iPad was good for was media consumption while travelling. However, with increasingly large iPhone/smartphone screens I've found (when people actually were able to travel) that carrying an iPad and an iPhone was incredibly cumbersome, especially if you had to carry a laptop as well, and watching movies, or reading book/magazine on the plane on your phone is by far good enough.