You’ve made a lot of good points, but none of them really address the suspect nature of Hydaelyn’s actions in my opinion—Minfillia being the greatest example of this because in hindsight she basically possessed her for a reason she FAILED to carry out (she supposedly possessed her so she could stay in communication with us and the not only failed to do so, apparently failed to do this with ALL of the WoLs at the same time. Even if we don’t count 1.0 canon where she was throwing out the echo enough for there to be an entire organization bigger than the 2.0 incarnation(the path of the twelve), there are still WoL besides THE WoL operating around the world(s), and Hydaelyn has done little to nothing to make them aware of and work with one another.

Even if we ignore that Hydaelyn ripping herself in half somehow weakens her and not her counterpart, it still doesn’t explain how she suddenly found the strength to go and help the first shard until she was directly confronted about the problem (remember EVERY SINGLE WoL has had SOME kind of interaction with Hydaelyn), and still appears to have failed to fix the problem, even if it turns out she has somehow delayed it. If this is the case, that opens an entirely new can of worms about the nature of Hydaelyn and Zodiark respectively.

In conclusion, until I see proof of otherwise I’m going to assume most of what we see of her is an act in some cosmic game of chess or something. Too many things that she has done appear (to me) to benefit Hydaelyn. Yet when the world(s) need her suddenly she lacks the strength.

This is not to say that Zodiark ISNT malicious as well, only that so far its actions seem far more in line with what a deity might do than Hydaelyn.