I don't know what the official definition of dragnet is, but when PRISM first came out, the hyperbolic, dramatic media interpretation was that of a firehose -- NSA gets a feed of everyone's data and can search it at will.
Now the scenario is: They must obtain NSL/FISA orders, Google reviews them, then the data on their target is released.
Is that a dragnet? What if when Google wins the right to publish statistics on NSL/FISA requests, it turns out to be just a few hundred per year, or less than regular search warrants, like when a guy is suspected of killing his wife.
Would that change your opinion? It seems that the pitchforks came out on the original WashPo/Guardian scenario, and if that turns out to be wrong, people will keep moving the goal posts and not put the pitchforks away.
Some people just want to believe that the tech companies are greedy, unscrupulous, entities.