Regarding the Fire mage AoE nerfs, I reckon a better solution would have been to add a target cap to flamestrike similar to other classes abilities. This would also make it a lot easier to balance as the biggest reason Fire mage in dungeons is so strong is because they allow ridiculous large pulls.
The Kindling change was something you could see coming. Having combust be reduced to less than a minute cooldown was just insane.
Depending on the hit they take I hope something else gets compensated as currently the mage specs (single target) feel rather balanced against each other.
Perhaps scaling / conduit ranks will balance it out though so in effect the nerf would counteract Fire outscaling the other specs without an adjustment.
We will see how all the interactions work out.
I just hope we don't get the same situation where Frost mage does rather well on the PTR and gets a 20% untested dps nerf just before the patch launches.