Maybe my diplomatic Chinese Canadian self would put it differently. I think other product designers are genuinely convinced of the merits other DAC designs such as R2R, DSD/PWM or DAC chips. However, in order to compensate for the inherent challenges for these DAC designs, those designers would need to compensate for these challenges with improved power supply, reduction in jitter (expensive clocks) or bespoke PCB. I'm guessing one example would be that if a DAC design is inherently prone to jitter, you're going to have to put in a more and more expensive clock to hopefully compensate for it. It's an imperfect solution but what else can you really do?