I don't know how much it's improved, but a bunch of URLs they use unnecessarily have region specific details in them.

I remember a Workspaces outage about 5 or 6 years ago, and the problem for us was that the redirect link in the console had US East 1 in it.

The workspaces themselves weren't in US East 1 and nothing relied on US East 1.

Emailing users who needed it an alternative link with a different region in the URL for the login redirect fixed it for us.