From the perspective of users of existing software that seems to break with no reason I agree. It's stupid how heavyweight imgur has become when it used to just be a fast simple website that worked everywhere.
Maybe you're content with the functionality your system has now and need no more, but I am still on the quest for new things I can do digitally, and easier way to do things I already can.
Take Figma for example, I'm not even a designer but even I enjoy having access to a collaborative drawing app that is trivial to share with other collaborators. If browsers had not agreed to implement Canvas and all rolled it out, Figma would likely not exist. Perhaps they could have created a packaged native application for all major operating systems, but in reality that's a ton more work, and a huge impediment for users to convince collaborators to buy/install some native app so they can work on a drawing together.
What other software are we missing out on because the barrier for interacting with USB/NFC/Bluetooth/Notifications/Background-Sync is too high.
In a world with native apps only, only the big players can afford to target all platforms, and only the big enough use cases can justify the expense.