I can't be the only one supremely annoyed at these titles. The legendaries featured in gen 3 were masters of the earth, water, and weather... but the games are named "alpha" and "omega," which are seeping with religious connotation, in addition to meaning "first" and "last."
But the gen 4 legendaries include the master of time, master of space, and literally the God of all pokemon. It seems very out of place that a gen 3 remake would be named alpha and omega compared to how much more fitting that would be in gen 4.
Maybe something got lost in translation somewhere. Nature-themed names would have fit way more than alpha and omega.