I would think that if they actually spent the time and money fixing the core functionality of their core products (like Windows and Office) that they might have a much easier time promoting things like Copilot. Instead they leave their users wondering why they're so hell-bent on shoehorning AI into a Start menu that takes whole seconds longer to open than it should or into Windows Search that regularly fails to find installed programs or local files.
Microsoft is a public company. That means their primary product is not products or services, it's their stock. Selling products & services can be an advertisement for their stock, but there are other methods of convincing people to buy their stock, too. Currently the stock market only wants stocks that have "AI" associated with them. It doesn't matter whether users like it or not, because having a viable business is not what the stock market is currently focused on. So, Microsoft is doing what they need to do to sell their primary product: shove AI into everything.
That is not what stock market is. A company does not have to focus on stock price and stock price is not its primary product.