What's the point with that quite lackluster story in Endwalker?

[CrownySuccubus]

When i bring up plot armor and plot holes, im mainly bringing up things like them telling us hes weaker the farther he is from the tower and that staying too far for too long can have severe consequences. Yet, despite being the farthest away he ever has been from the tower, and for presumably the longest, he is able to cast a spell he couldnt even cast properly once whilst under the full power of the tower, and multiplies it seven fold. Im sorry, but that goes against the lore we were given and seems to serve only as a way to prevent him from having any consequences.

The reasons he couldn't cast it properly in the Tower was because he was trying to summon entire whole people with bodies, memories, abilities, etc., intact. It's stated in 5.3 that the spell is significantly easier to cast if you don't care about summoning entities with their entire spirits and powers. In that moment, all he needed were seven temporary allies to assist the WOL.

Fast forward to 5.3 where Elidibus has numerous opportunities to kill him and...just doesnt.

Elidibus makes it clear that the WOL is his target, and no one else. The only time he ever attacks Gr'aha is in order to gain the power to summon other WOLs, and both Gr'aha and Beq Lugg use their power to escape.

I'm not seeing the problem, nor the "plot armor".

I'm sorry but are you kidding me? I think we have completely different definitions about what it means to be a hero. The High Summoners of FFX were praised as heroes because they gave their lives in order to bring peace to their world even if it was only temporary because they held on to hope, even if they were not told the full story of Sin.

........And the lesson of FFX is that they were wrong.

The entire point of FFX's story is that sacrificing your life without even looking for an alternative is stupid. Everyone praised the Summoners and their deaths because they falsely believed that if they did it enough times, Sin would be gone for good. Auron's entire plot is that he died trying to get revenge when he realized how senseless his friends' deaths were, and he spent the whole game nudging Yuna's party into seeing the truth. When Yunalesca makes it perfectly clear that sacrifices will NEVER make Sin go away, the party renounces the entire system of sacrifice and resolves to find another way. And to put emphasis on this point, Yuna is likewise upset that Tidus sacrificed himself without warning her, and multiple times when someone offers to sacrifice their lives as a solution, Yuna shoots them down immediately and tries to find another way.

You picked probably the WORST miniseries in the franchise to cherry-pick here.

Noctis in FFXV saved the entire world by sacrificing his life after having enjoyed a relatively privileged life up until the invasion of Insomnia.

Yeah, and it's hinted throughout the story (as well as the entire point of every DLC after) that the entire sacrifice was a rigged game set up by the start by the corrupt gods of the FFXV world. Noctis sacrificed himself to save the world, specifically because human lives were being used as playthings. His sacrifice is more tragic than it is heroic, and the DLC make the argument that it probably shouldn't have happened that way.

Need I go on?

Considering your examples thus far disprove your point, I think you should.