GMs have always been terrible content. They were designed to be watched, not played. Then even the "top tier" who were doing them to be watched found that wasn't worth it, so Bungie changed them into loot pinatas and they've only gone downhill since. Now with builds and subclass changes, it's spam abilities and stomp through until you find something that can one shot you through all the garbage, plink it down or find a way to avoid/cheese/ignore it. Using blues just makes the latter happen more often which is boring to watch and boring to play. People solo GMs. No one cares anymore.