I don't see it that way at all... Odin consulted Skuld and Mimir, then went on to do everything in his power to prevent what was coming. Why else would he and Freyja spend an eternity assembling an army of the best and brightest from among humanity, and then conditioning them for war if defeat was inevitable?
To me, it seems obvious that that's no way to avert the final battle. Instead, it seems to be a simple attempt to make the best of it. To go down fighting, if you will.
To understand Lokasenna, you have to understand the key players, namely Odin and Loki. It is plainly apparent throughout Germanic mythology that the reason Loki and Odin remain so close is because they are, in a sense, a match for one another. Odin views Loki with respect because Loki is the only one who can stand against him when it comes to wits. Although this rivalry becomes very unfriendly towards the end, we do not know that end, only the predicted conclusion. Wyrd and Orlog are fluid, and constantly in motion, and the end is never set-in-stone, that is a fundamental cornerstone of pre-christian Germanic thought. Nothing is pre-ordained. "Create your own fate, be your own savior" is pretty much the entire message of the old Germanic religion.
Sure, but the Aesir and Vanir weren't defined by some special ability to avert fate. Humans took fate into their own hands every once in a while, and, ultimately, even if they were trying to avoid it, the gods do still end up at Ragnorok.
Drawing even more connections here, Tiber Septim/Talos is very much like Odin in a great many ways (So is Vehk for that matter). As Odin and Loki stand as equals, each seeking a way to at last better their rival, the same could be said of Alduin and Dovahkiin (or Talos, if you choose to follow the whole Dovahkiin=Talos school of thought.) Dovahkiin finds this way of changing fate by mastering the Thu'um, Using an Elder Scroll to essentially break time, and then ultimately turning Alduin's closest attendant against him. Although it is pretty much a given that Alduin is going to trash the place, twice he has been defeated by mortal ingenuity.
You know, I rather like that idea, but I'd identify Auri-El as Odin and Lorkhan as Loki. The good period in their relationship (adventures with Thor, the wall episode) was the lead up to convention. Baldur's death was the creation of mortality. Chaining him in Helheim was shooting his heart across the ocean.
Another thing to keep in mind is that Lokasenna was written by a Christian monk some time after most of the Heathens had gone into hiding. Snorri's work is at best a look at Heathen mythology through a very devout Christian lens. A bit like trusting in-game characters as an authority on lore, tainted and distorted by personal preference and viewpoint... It is even speculated by some that the entire Lokasenna/Ragnarok myth was created as a way of subverting the old beliefs and introducing the idea that the Christian God was superior.
I know that the Eddas were both written after the major powers of Scandanavia had all converted, but I thought the poetic one was written before Snorri was even born. Anyway, otherwise I agree with you.