Why does Clemency get interrupted? And why does Sword/Shield Oath reset combo?

[AzureFlare]

Stuff

You forgot the part where, since heals and shields snapshot, you retain the benefit of buffed HoTs and shields when switching back to Deliverance compared to Grit/Sh.Oath. Very nitpicky I know, but it adds up pretty nicely over time, especially with Conval.
Completely agree with your post regardless.