Yes, that's marketing wording for the layman.
However, some capacitors are very bad for using them in sound applications, in the sense that their capacitance varies with the applied voltage (having in mind some MLCC types, for example). Since the audio signal varies, the capacitance changes. Thus, some capacitors can distort the sound. Those marketing words are correct from the engineering standpoint.
Again, that sound card of yours has a very fine selection of components (including the capacitors, but not only that, the ICs, too), and it was optimized for best performance (not like other boards that are usually optimized for low cost).
The problems you have had with the drivers is another story, but the hardware is very good, it will beat in audio performance most other soundcards out there. Since the new drivers are fine, you may want to give it another try. Follow the install instructions (from Asus) and don't fall for the rants on social media.
It's irrelevant if the card came as a bonus or if it was payed, that sound card has exceptional audio performance. Would be close to impossible to DIY something with similar specs (by reusing some parts), so harvesting the parts will be a waste for both the sound card and the parts.