It's not that he lost, it's how he lost. And how he looked inside that cage in general. That's the cause of the butthurt, it's hard to see a legend finish his career in that fashion.
As for Edgar, we can finally see get to see him fight other FW contenders (no disrespect to Oliveria whom i a fan of). This fight was just a waste of time, Frankie should've spent that time building up momentum for another shot at the belt.
"Whoever is winning at the moment will always seem to be invincible."