We all use technology to sound better.
We use Vocal Harmony, equilization, reverb, transpose button, styles, backing tracks, midis...….etc.
I don't tell my audience that wasn't a real sax playing, and I had to transpose the song because the singer couldn't sing it in the original key, and that wasn't really me harmonizing with her, etc.
The guy did a great job, was upfront. His mistake was using the word "cheating". He can sing the song, but not in the original key.
He did a great job using "the tools".
With social media people just look for things to criticize.
You got to accentuate the positive. Eliminate the negative.
Jerryghr