Think the arty dog cements artis place as soloers since even if its not used you can use it to pull levers which can be a very important when soloing. So even those who have judged the dog to be more effort then its worth its still a useful tool to have in certain quests. It can also be summoned after your dead pick up your soulstone and then will come to were your ghost is with the come command ive never actually been able to use this even once but its a cool anyhow even if i doubt it would surive long enough solo against anything that could kill you even to pick up stone and run away. And foremost it can be used in challengers to defend a spot or delay enemies super useful