[teleclimber]

There is a limit to how long developers will support these old browsers, even if they sell to corporations and institutions with backwards IT policies.

Some companies and even healthcare institutions are seeing the light and upgrading their systems. As more and more do, it makes less and less business sense to support old browsers (fewer companies still using them, and it only gets harder to make a modern web-app work on them).

There is a huge cost to supporting old browsers. There IS a tipping point where it's just not worth it anymore.

So the companies/institutions that don't upgrade will soon enough be left behind. That's just the way it is.