If you are a belligerent customer bitching and moaning that a particular company's business model isn't custom-tailored to your own needs, then I'd say most companies wouldn't want you as a customer.
On the other hand, if you think it through, they are offering a valuable service, and not a product at all. Do you really think White Wolf would release their products as non-DRM PDFs? No, they would not. DTRPG has enabled you to purchase electronic copies of material that otherwise would never be offered.
What are they supposed to do? White Wolf (or whoever) will not allow them to release in anything but DRMed. And PDF is the only suitable format available (for various technical and economic reasons that I will not go into). This is why Microsoft, Intel, AMD, Apple and other companies are pushing so hard to get DRM integrated into your machine. That will mean that a particular piece of software (in this case Acrobat) will not need to have its own DRM scheme as it currently does. The computer itself will offer the DRM and all applications will be able to take advantage of it. Until that time, you are stuck.
And releasing as non-DRM PDF is not a great idea. A quick search on Kazaa just brought me up several Malhavoc products free for the taking. Given a bit of time, I'm sure I could get the entire publisher's line of books. On the other hand, it is far more difficult to find the DRM White Wolf products. They are protecting their interests and investments, fully within their right. If I were a publisher, I'd do the same. You may find that a product from Malhavoc is wildly popular in PDF format. But you might also find that the only reason for that is that it's free.