Because Microsoft is trying to use it to fracture and control the Minecraft community, divide and conquer. It’s a lazy ripoff of real Java Minecraft, locked down with DRM and restricted to platforms Microsoft blesses, and the only significant improvement is more graphical sparkles (not as much as modded Java though) and new modes (not as many as modded Java though) and new creatures (not as many as modded Java though) and new blocks (not as many as modded Java though) and new dungeons (not as many as modded Java though) … are you sensing a theme yet?

It also has all kinds of paid DLC and microtransactions and advertising shoved into it which they want you to believe are somehow “better” than the countless variety of mods that have been developed for free by the community (they’re not)