Nope. A bunch of people have been spending money on MP. That's the thing -- a chunk of the MP fandom actually buys those packs en masse in order to gather items, characters, weapons, etc. more quickly. They actually pour Microsoft Point after Microsoft Point (and the PS3/PC equivalents) for this stuff, silly enough. That's why Mike Gamble's been quoted for saying it's made them a lot of money. That's how the MP community works with a lot of free-to-play MP games -- through microtransactions. So I'm told, that is.
Also, two of the seven weapons are
completely new, which puts this at 66% as effective as ME2's Firepower pack already for the same price point.