I agree with what you’re saying for the most part, but for a population the size of Australia with 1000 respondents, a 99% confidence level has a margin of error of 4% which is perfectly acceptable. Unless the survey targeted very specific demographics versus a random sample, it should be very accurate.
I switched from Spotify because their personalized mixes and radio stations stopped letting you thumbs down songs. I got sick of hearing the exact same crap on my mixes. And no matter how many times I fucking skipped it, my metal mix would always play Mother by Danzig early in the playlist. No matter what I actually listened to, my “personalized” mixes always had the same crap on it. Thumbs down a song on a mix or radio on YT Music? It goes away forever.