When selecting two gathering professions, there is going to be some understanding that you won't be making gold from crafting, at least not on that character. Making them BoP is a good way of showing others that, you as a crafter, have made an awesome item for yourself. If you plan on selling the crafted item, it allows you to raise the value and demand even more of a profit.
As others have mentioned though, there is always a chance they'll become BoA or BoE in the future but no promises. :P
Actually it is more like the following:
Making them BoP is a good way of slowing down the availability of crafted epics because we want to drag out content as long a possible so we may actually get the next content patch out before the majority of the player base is finished with the current patch. The level of inconvenience to the player base to get to the content they want to is irrelevant. Hence why we also removed Have Group Will Travel and the enhanced travel speed while dead and flying while dead so you have to spirit res if you get screwed where you die.
This statement is about as ridiculous and redundant as you can get since this craft item Has been BoP in EVERY expansion to date at the start. It has nothing to do with making the content last.
All you people whining about it, most likely are just too lazy to farm them and want easy access to them via the AH. To frign bad. Suck it up buttercup and farm them like everyone else.
For the guy about tillers. If you don't do the dailies which most of these lazy people wont do, they wont have access to the songbells to plant. Again this has nothing to do with drop rates or RNG, it's all about wanting to expend NO effort other than buying them off the AH when they need them. ATM Spirits ARE worth quite a bit, no matter how delusional you are to insist otherwise. They will remain to be worth quite a bit until they are made BoA/Unbound.
This silly rant about SoH/MoH is exactly that,SILLY. There is no reason for it other than laziness.
Just running around killing mobs for regular quests yesterday, I got enough motes to make 5 SoH on my Warrior, he's 87. I can only imagine that you have no luck, because this has been my luck on ALL toons I have leveled so far. I usually have 10+ by the time I hit 90. I got 70+ motes just from doing My GL/Klaxxi dailies.
There is no reason for motes/Spirits to be BoA/Unbound. Frankly I hope Blizz never makes them Boa/unbound just to spite all the QQ'rs.