I thought what Agent of Asgard did re: Loki lifting Mjolnir was really smart.
With Age of Ultron, lifting Mjolnir became a meme where [insert character] is capable of lifting Mjolnir to prove their worth. I got real tired of it real quick. So, I honestly wasn’t excited about Loki lifting Mjolnir. I didn’t care.
However.
Loki didn’t prove his worth by picking up Mjolnir. He proved the worth of a heroic version of himself, who he transformed into due to a hero/villain role reversal plot device – so of course he’d be able to lift Mjolnir.
This isn’t to say that lifting Mjolnir highlights nothing important about Loki’s journey. Loki is trying to make a change, and this does lend to his ability to lift Mjolnir when he needs to:
…but doing so did more to demonstrate Thor’s fall from grace, rather than highlight the importance of Loki’s journey:
Here’s the thing, though. The Agent of Asgard narrative is awareof this.
How do we know? – because Loki lifting Mjolnir is not the defining moment of the comic. We know because he soon after loses control of Mjolnir when a reminder of his “crime” surfaces…
…but most importantly we know because Odin tells him that he doesn’t need to be worthy of Thor’s power. He needs to be worthy of his own:
Lifting Mjolnir didn’t prove much of anything for Loki.
Becoming worthy of his own power did, and he didn’t become worthy of that power by magically transforming into a stereotypical hero. He did so through self acceptance and self love and that was so powerful: