Can Arcanist please have a better pet health regenerating ability?

[Bigcat9715]

Sustain is okay, but when your pet hp dips into the red and your trying to get them to a good hp% before the next unavoidable aoe smackdown comes out, and just have them die on you is really annoying. Pets are a big part of your DPS/Healing output, and when they die, your hurting. Sustain only recovers 8% of your pets hp over 10 secs why? Please just make sustain heal about 15 or 20%, or make it where your pet gets a hp regenerating bubble shield that's basically adloquium.