The 8% number is not accurate. 3% of guests were using GAC in 2014 when they rolled out DAS. It continued to grow each year. It reached new heights in 2020 when WDW reopened with standby only and guests wanted a "line skip" option. G+ made it grow faster than ever, with Disney stating that use nearly tripled in the last three years alone.
So let's assume (conservatively) 15% of people had DAS. Everyone has 3-4 people with them, on average. Which means the LL were 60-80% DAS users or their companions.
Abuse was astoundingly high. Not everyone was faking (though many, many were) but there were lots of people with issues like anxiety, IBS or POTS which aren't fun but don't require always skipping a standby line. Yet people used it every single time, even when they didn't need it at that moment.