There's a definite vibe these days of "this is how it's always been" when it really hasn't.

The SPA Jira cloud is faster than anything server rendered for me, my connection is shit. In Jira I can at least move to static forms quickly and I'm not downloading the entire page on every move.

I’ve used Remedy in three different shops, and the experience varied dramatically. The entry screen might have popped instantly, but RPC timeouts on submission were common. Tab order for controls was the order they were added, not position on the screen. Remedy could be pleasant, but it was very dependent on a competent admin to set up and maintain it.