Right now wiping to a boss in M+ on a decent keystone is pretty much signing your death warrant as a sunfury arcane mage. Arcane surge damage is entirely reliant on having spellfire orbs and currently dying to a boss results in you running back to repull with NOTHING. Pretty much makes you completely useless in the fight without them and when you’re attempting to run high keys basically makes it dead in the water depending on the boss. They already slowly regen outside combat so clearly you are ok with outside regen and I highly doubt there will be mage strats involving killing yourself to gain orbs at the cost of time.
Not to mention I wouldn’t have to play this god forsaken spec if you would just buff fire mage properly.