You're conflating bad UI design with user-friendly, intuitive, comfortable UX. Also, design is simplified because that strategy works. People want simple UIs,

You're conflating bad UI design with user-friendly, intuitive, comfortable UX. Also, design is simplified because that strategy works. People want simple UIs, while business doesn't want to invest in design, costs of which rise exponentially unless you have talent both in development as well as management at work, or deal with too many unique support requests.