The demise of saas has been overplayed imho. When companies buy software they are essentially buying something that solves a problem and the insurance that comes with that. Part of that means they get to pick up the phone and complain if something doesn't work and someone on the other end has to listen. There is also a strong community aspect to software, someone asks for an enhancement others can benefit etc. I just…
It won’t be the demise of general purpose SaaS like CRM, though it may be the rise of ridiculously full featured f/oss alternatives. However, niche stuff like vertical-specific CRUD apps that used to be able to charge a heavy SaaS premium simply because they could develop CRUD apps and UI faster than their customers are toast.
IME development speed is a very minor factor in the success of a vertical SaaS. Vertical niches exist because they are experts in something other than software, and understand it's worth paying for their problems to be solved. Typically, subscriptions of successful software businesses are priced based on outcome/value, not the cost of development.