I feel like mainstream TV wasn't much better at that. The vast majority of TV shows I got into seemed to get cancelled after 1-2 seasons.
While they seem to have a bad track record by public opinion, it's unclear how much worse Netflix was at this.
I did a quick google to see if I could find any statistics, I got bored looking for some better data but did find this article claiming that from 2009-2012 "on average, 65% of new network television series will be canceled within their first season.":
https://screenrant.com/tv-success-rate-canceled-shows/
While they seem to have a bad track record by public opinion, it's unclear how much worse Netflix was at this.
I did a quick google to see if I could find any statistics, I got bored looking for some better data but did find this article claiming that from 2009-2012 "on average, 65% of new network television series will be canceled within their first season.": https://screenrant.com/tv-success-rate-canceled-shows/