I really like a good suggestion, but after opening those links I really wonder what made you think of this suggestion.
Obviously some spells are beneficial. But it'd be really unfair for some people to have the spell while others don't.
Some others just don't make sense to me, I don't see how they could be useful.
Let's take a look together.
Only a few of these spells seem to be beneficial. Razorhide and Windsong mainly. They grant you crazy extra's for a period of time.
5 of the suggested spells can only be used in a certain area unless they're bugged. Doesn't seem beneficial at all.
That leaves us with the few spells that can be used everywhere and don't seem to be ridiculously OP.
5 to be exact:
If you open the Wowhead link you'll see that these spells barely add any rating. Never more than 25.
If you open the prntscr.com links however, you'll see that on 4.0.6, which we are on, the amount increased is $s1.
Now I'm not completely sure what this means as this hasn't been tested, but I could see spells like this bugging out due to our customizations.
If they'r bugged they obviously wouldn't be added.
If they're not bugged I really don't see why you would want them to be added.
If one would have all 5 of these he would have a stunning +2 stamina, +10 Strength, +10 Agility, +10 Intellect and +25 Spirit.
Correct me if I'm wrong but it seems these spells are either too Overpowered, too Underpowered or useless due to area requirement. Or possibly bugged^^