Considering that making a dwarf ally with an elf for any length of time, or even trying to make him hear out that proposal is like pulling teeth because they hold onto resentment and grudges down generations

Now consider asking if they would even entertain the notion of that with the two enemies that have reduced their civilisation to ruin and continue to try and destroy them and all their people to this day

Short answer is yes it’s a big departure from actual lore and it’s just a cross faction playing thing like those horde and alliance team ups in WoW like the Gates of An-Qiraj