No, it is not. It sounds like a great way to earn a whole bunch of money from somebody who is having repeated brain farts about what the law actually says.
Even if you win (and that's a big if, considering you are an individual vs. a company with armies of lawyers on staff) the most you will ever see is that your copyright gets upheld and you MAY recover attorney's fees. Unless you can prove Qualcomm maliciously and purposefully filed an false DMCA claim you aren't getting jack. If you are a contributor to an open source project are you really going to give up hundreds of hours of your life and thousands of dollars out of pocket to defend your portion of the copyright on the code? On the slight chance that judge says "yep that's your code" and pays your lawyers? Seems like a huge risk for a very modest reward, if you win you are only out the years it took to litigate the matter but if you lose you could wind up liable for damages for infriging copyright on your own code (now Qualcomm's code).
This is why the DMCA is bullshit, it's not enough that corporations have extended copyright to life+infinity, even if they don't own the copyright laws like this allow large corporations to abuse the already fucked-up system. Like global thermonuclear war, the only winning move is not to play.