I have no problems with Artists using backing files providing these simple rules are followed.
1. The Artist has recorded the backing.
2. The Artist plays everything that is physically possible for him to play, with the backing being used to add authenticity to the performance.
3. The Artist tells the audience that he is using a recorded backing.

Like the song and performance, but the electric guitar sounds very artificial. (However bear in mind that I regularly listen to live electric guitar, and so deficiencies do stand out)
Enjoy whatever you play

Bill