Why does the writer of the following paragraph describe the other bands as “low-rate” and “amateur”?

Question

anonymous · Answer

The concert festival was a failure in all ways but one: ROXXOR gave a fantastic performance. Throughout the day, the festival planners angered guests by running out of food and drinks, offering only muddy corners under insect-infested trees for shade from the hot sun, and act after act of low-rate, amateur bands. But then, when the fans had just about had enough, ROXXOR took the stage. The lead singer enraptured the crowd with his lyrical voice, the drummer pounded out energetic rhythms, and, finally, the people began to cheer.

anonymous · Answer

The writer is showing a bias in favor or ROXXOR.

 The writer is showing a bias against ROXXOR.

 The writer is showing a bias in favor of concerts.

 The writer is showing a bias against concerts.

lgbasallote · Answer

well  the author praised ROXXOR so i would say it's A

anonymous · Answer

thanks(: please continue to help me

anonymous · Answer

http://openstudy.com/study#/updates/50460448e4b07917dfd55ab5

lgbasallote · Answer

like i've told you before...stop linking