People are going to complain about anything that makes the game more difficult for them.
They tried a different approach in Cataclysm and made the dungeons punishing and people complained about that also until it got nerfed.
The fact is people are going to complain about anything inconvenient even if in the long run it's good for the game as it prolongs the life of the content because people aren't able to blitz through it.
Farming motes is not difficult. Time consuming and difficulty are two completely different beasts.
Tell me, what good do Spirits of Harmony serve? At what point is it fun to be leveling professions only to suddenly realize that you can't progress without using 1 or more Spirits on a worthless item that's going to get vendored or disenchanted anyway? How is it enjoyable that the main component of almost every profession is not reliably obtainable in any way, except by grinding up Tillers rep and filling your farmland with them?
The drop rate is absurdly low, it doesn't come from gathering nodes, and it's BoP. God forbid
I level a pure gatherer or an alt that otherwise doesn't have a profession. I'll be stocking up on all of these useless blobs that I can turn in (at a massive loss) for basic resources that I can gather at least twice as many before I even find 1 mote drop.
They want people out in the world - fine. There are better ways to do that than repeating and amplifying the annoyance of the Chaos Orb mistake. At the very least with Chaos Orbs you can farm them predictably, you just needed to gather some friends or cross your fingers. That Chaos Orb was definitely going to drop. You can't say that about Motes of Harmony.
The drop rate needs to be upped. Drastically. I should have multiple Spirits by the end of a few hour session, not less than 1 Spirit per level.
They need to lose their unnecessary soulbinding restriction.
Or they need to be a key ingredient ONLY for a select few L600 items, or exclusively for new recipes.
These things are valuable for all of the wrong reasons. As much as I love the expansion, the Spirit of Harmony is the thing I loathe the most. I have nothing positive to say about it. It's a terrible idea with no excuse to exist given that they've already tried and failed with this experiment. I'm not going to be going out into the world farming for Spirits. I'm going to want to play less
because I really enjoy the professions mini-game. Knowing I'm going to continually hit brick walls just because I refuse to go out and grind (and even if I did, I have no guarantee that I'll come back with even 1 Spirit) is nothing but frustrating and unfun.