Were you on fan communities back then? Because voice flaws were always criticized before too. However I can’t remember encores being worse than the actual performance like some encores now. Because back then the backtracks on the actual performances were less heavy, had less processing etc.. so encores were not much different from stage to make a big deal out of. Idols rarely sing raw live without editing or lip-syncing.
I see more fans glorifying average vocalists now than in the past. If an idol sang any line live without messing up, they would get praised to hell over it.
i think that's a good point, that people were used to less processed vocals so encores weren't a big deal because it didn't sound any different. but yeah i wasn't around fan communities or anything so i'm glad to have people who were who can give me more context