Dkevdog has it right.
If your engine fails and DC believes it was due to a failed or inadequate filter, they do not go after the filter manufacturer, they simple deny warranty coverage. It will be up to YOU to sue the filter manufacturer, or if you don't know who's at fault you could sue both DC and the filter; three years down the line and enough dollars out of pocket to pay the damage yourself, you may have won, but it might not feel like it.
For an individual to take on any major corporation is a daunting project. You really need to be right. If you are right, you may be able to settle favorably, but that isn't by anymeans a sure thing.
Much less likely to be a problem to use a filter that is not going to get you into that situation.
Second point; That a filter was a really good one 10 years ago, does not mean there has not been a corporate change of direction. New management may need to show better profits and to do so may cheapen what was a very good product down to one that is not very good at all.
Vaughn