"calls the Mandarin out and that leaves Stark without his tech and weapons"
Hmm... yea... only so that Stark can call the House Party thing in the final 10 minutes of the movie. Why doesn't he call them before? Why doesn't he retreat to the Stark Tower in New York? Why isn't Cpt. America or S.H.I.E.L.D even MENTIONED when the friggin' president of the USA is kidnapped? How did the extremis soldiers not melt their clothes? Why did Aldrich get so mad, he only missed the Millenium Eve... so much for demons