There's actually a totally legit reason why the elements did that. Here's an excerpt on wowpedia from Chronicles V2.
"Hundreds of years later, 400 years before the opening of the Dark Portal, the ogres of the Gorian Empire decided to take the power of the elements by force after witnessing the might of a powerful shaman first-hand. The ogre leader, Imperator Molok, sent an army to drive away the orcs from the Throne of the Elements and begin experimenting on the power there. The ogres eagerly and carelessly dissected the Throne with their arcane spellwork, ignorant to the mix of raw titan and elemental power that lingered in Grond's remains. One day, the dissonance between the ogres' magic and Grond's residual energies ignited an explosion that blew apart the temple the orcs had carved from the giant's skull and killed every Gorian sorcerer inside the structure, leaving behind only a few standing stones that remain to this day. The incident threw the elements out of balance all across Draenor, causing great storms, but Molok simply sent more spellcasters to replace the ones that had been killed by the explosion.[3]
At the next year's orcish Kosh'harg festival, the Shadowmoon elder shaman Nelgarm pleaded for action, lest all of the clans suffer disastrous famines as a result of the elements' imbalance. The clans agreed to join together, and Nelgarm called upon the elements to bless them with their protection. The united orc army fell upon the Throne of the Elements. The Gorian sorcerers, utterly surprised by the attack, retreated with little bloodshed. However, Imperator Molok was quick to retaliate. The Gorian armies moved en masse, and total war engulfed Draenor, and now every orcish male, female and child had to be prepared to fight. The orcs gradually dismanteld the ogres' land-based trade networks and pushed them back to their capital, Goria, marking the beginning of a lengthy siege. After the ogres began spreading the deadly red pox among the orcs, Nelgarm and the other shaman were forced to beseech the elements to completely destroy Goria. Both parties understood that Molok would resume meddling with the Throne if the clans failed, and so Goria was ravaged by earthquakes and lightning storms over the course of hours before the earth itself wrenched open to swallow the remains of the city whole. The orcs, having suffered tremendous losses and being frightened by the elementals' wrath, went their separate ways and returned to their lands."
It's like you yourself said in your response to Magister of Quel'thalas. Alterac Valley is the way it is, natural. The elements won't like changing it without good reason.