Ross explains in the issue why he's recruiting these individuals, they're all like-minded like he is. Not everything is going to be explained in the first issue guys. I quite enjoyed Thunderbolts #1 and will be following at least the first arc. Basically this is the superhero version of X-Force, and I'm guessing from the tone of Ross's explanation to Frank that this is unsanctioned.
For 10 pages over at the CBR forums the opinion is overwhelmingly that it's an unsatisfactory issue with an unsatisfying explanation by Ross. Being like minded isn't a full enough explanation.
Even those who said they went in with low expectations were let down.
This is just one I'll agree to disagree with you on since you seemed to like it.