[fragmede]

They created the format, which means they don't need to make a good reader. Simple inertia guarantees them a good amount of revenue selling to corporations, and those contracts are usually quite juicy, especially the ones where the person signing the contract isn't forced to use said product. (cough Microsoft Teams)

Improving the product would be a significant amount of work, cost a lot of money, and why do that when you can just sit back and rack in the cash?