It's even worse than "portable players do it".
Every single player on the market does it. They need to in order to perform error correction, which works on fixed size blocks of data. There is no way to correct for dirt and scratches without having already read several bytes in advance.
This product is bullshit because nobody simply streams bits from the photodiode straight to the DAC as they suggest. That wouldn't even be possible, given that
The smallest entity in a CD is a channel-data frame, which consists of 33 bytes and contains six complete 16-bit stereo samples: 24 bytes for the audio (two bytes × two channels × six samples = 24 bytes), eight CIRC error-correction bytes, and one subcode byte. As described in the "Data encoding" section, after the EFM modulation the number of bits in a frame totals 588.
It's a nonsense written to mislead people who may be used to the way things work in vinyl and have no clue about digital technology.
Yes. Had to turn it off as the crazy people (AOC, genderbenders, flat earthers,...) gave false positives.
I've seen this phenomenon aptly described as
Poe’s Law singularity, at which the behavior of trolls and true believers becomes indistinguishable even to each other