Earlier quoted context omitted.
I can see what you're getting at here but in this case, a lack of changes is NOT desired or virtuous. WA is being left in the dust by messaging platforms that actually care about shipping a quality product.
Says you. Lots of people like software that keeps working reliably over the years. I know I do. The only valuable updates to WhatsApp are when new emojis are added ;). For the rest it already works very well, why break it or redesign it?
Other messaging apps introduce new features, like inline bots and the ability to not share your phone number to everyone you talk to.