Silvertear Skies plot hole

[Nalien]

Whether he tried or not is immaterial to your claim, which is that he arbitrarily decided to stop the Garleans, but not the Allagan or the Mhach, from setting up near Silvertear. You say it's a plot hole, but it's not.

OP claimed it was a plot hole, I've done nothing of the sort. I've simply pointed out that it's an odd gap in our understanding of events.

Heck, I'm pretty sure I've claimed the exact opposite that he "arbitrarily decided to stop the Garleans", I've given what I think is his reasoning for stopping them, and why he did nothing with the Allagan or Mhach; He was keeping Crystal Tower safe. Crystal Tower was built by the Allagans, ergo he had no reason to protect it during their reign, only after it sunk away and was sealed in a little time bubble did it need guarding. The Mhach had seemingly no interest in Allagan technology. Garlemald? They straight up attempted to recreate Crystal Tower with Bozja Citadel, then flew on into Mor Dhona? Yeah, there is clear intention there and reason to act on Middys part, IMO.

That's my interpretation of events based on the information we have (and my reluctance to take mythos as fact). The information we have that suggests he was guarding the Lake during the Allagans reign is none existent as it currently stands (again, except for mythos). There is absolutely zero mention of him, no indication of any fight, no indication he did anything during that time. It's not a plot hole, it's simply missing information. Oddly missing information given how much we've delved into that history at this point. Shadowbringers could fill in some of those gaps and completely debunk my theory, but until then?

If there's anything resembling a plot hole, I'd say it's the idea that he was protecting a seal on Primals at Silvertear, when he catastrophically failed to do that. Again though, I don't think that's what he was protecting, and I'm more incline to think releasing Primals was an intentional act. He wanted to stop Garlemalds advance, and releasing Primals did exactly that... At least it did for a while...