I tried the leveling spec as suggested, and it absolutely does not work. The pet summoned via Black Arrow is way too squishy. On the very first quest to get the MM artifact weapon, single mobs were two shotting the pet. I think the main issue with the suggestion to level MM and use the Black Arrow minion to hold threat only works for super geared players like Azortharion, the 740+ crowd who can actually kill the mobs quick enough that the pet getting 2 shot doesn't matter and can kill the mobs fast enough to be able to constantly cast Black Arrow.
It does not work for the average player. I went into Legion at 714 ilvl with the 4 piece bonus, so I'm not exactly running around in LFR gear. While stuff may die quicker as MM + Lone Wolf, the leveling process is going much smoother for someone like myself, not in Mythic Warforged gear, by doing things the old fashioned way. With a pet and managing that pet to hold aggro and take damage for me. I've been playing a Hunter for almost 8 years now, so this is not a "L2P" issue. Azortharion, I love your guides, but for something like a leveling guide, you need to take into consideration people other than just the top end players.