RetroUSB and the scene are all very well aware of this. Problem is emulating pixel blur and defect aren't accurate either. There will be no perfect "defects preserved" mode because people played them on a hundred or more different TV technologies from the '80s and '90s.

People after that old look, and the scanline mode the NES Classic have find that it's actually not that cool to have those running. Best to appreciate the game as it plays now. Purists who try to "replicate" classic gaming are trying to gobble up all the SONY PVM / BVM tube medical and broadcast monitors now. Unfortunately they are also wrong there too. No kid playing nintendo back in the day had that crisp of a monitor either.

This is futility played out in this hobby and it's better to look forward and appreciate the amazing color and pixel density of today's technology with the game scaled to the best of our abilities. Are we to try to add a front light simulated glare to the TVs as well so that we can see a fake reflection of the table lamp on our games as well. It's preposterous.

If people want a CRT to get a faster response time, good on them. and so you know this isn't emulation. So it's not 'forgoing' emulating artifacts, because that wasn't what the original systems did. This is the system running on a chip totally simulated with the same behaviors but with different output (HDMI).