Am I reading too much into the Thor/Loki scene atop Stark Tower during the war? Thor thinks he's convinced Loki to abandon his war, when Loki stabs him with that mini blade? Thor pounds Loki then pulls the blade out and throws it aside? Thor staggers for a second, then goes off to join the rest of the team

. He does a rough landing on the street below, like he's still bothered by it, THEN they just kinda leave it there

...Thor show no ill effects the test of the battle. It may be either:
1. They just wanted to show that Thor was momentarily injured by Loki, and thats that.
2. It got lost in the script, and Whedon forgot show why Thor was so bothered by that blow

.
3...its a slick set up for The Dark World Thor sequel in November. The blade is laced with some kind of poison that incapacitates Thor as he's transporting Loki back to Asgard. Loki escapes to kinda play the instigator to Thor's new foe, Malekith The Accursed

.
Just odd that they would he would suffer a puncture would, be affected by it like that, then they leave it there

.