That’s basically it. Your preference. Nobody’s denying it increases your survivability, but it gimps your damage.
Nobody’s going to argue about Torghast, because it’s brain dead easy on any spec running any lego.
Try Arcane Bombardment if you ever go back to it. The execute you get lets you quickly blast through solo content. Arcane packs a bigger punch than Fire does by basically staying in “burn” phase for long periods of time during open world PvE. Its best covenant is Necro, which adds more to survivability by offering a massive shield.