Call_me_jorge said: "Pretty sure a high profile country stealing copyrighted material for the soul reason to enhance their propaganda agenda is serious,"
I believe the correct spelling of that word is "Seoul"... Just kidding! (sole) 
When I was younger (my college years, before the internet), there were specific jobs in the entertainment field that were sought-after because the pay was comparatively high, padded your resume, and were more 'fun' than 'work'. Theme park shows and cruise ships fit that category.
There were also bookings called, "Industrials". That was when a well-heeled corporation would hire singer/dancers to rehearse and perform a very short performance meant for a large audience of its employees (i.e. conventions, company-wide meetings, etc.). The performance was meant to showcase whatever new products or ideas the company was rolling out to the public or its employees. The wealthier the company, the better the pay for performers, so Industrials were a pretty good gig (depending on what you booked).
The songs were not always original compositions though, and I can recall doing many shows where popular songs were used with re-written lyrics that fit the company's purpose ('propaganda', if you will). Keep in mind, too that this was before the Internet and YouTube, so performances meant for a closed audience usually stayed closed. No big deal.
I see the situation you note in the OP as being just another example of an Industrial. Granted, it might be country-wide, but that's the kind of thing China does - and has done for a very long time. And it's also the kind of thing we do in the US, too - at least at a corporate level. I've done enough Industrials to know that to be the case.
I don't know if the Chinese audience of that show readily recognize that the source material is from The Book of Mormon (but I suspect they might), or if the electric company is deliberately trying to pass off their advertisement as an original composition (which I think they may not). I also don't find the performance as readily available on the Internet as another poster has suggested (I googled, as directed, and came up with no hits).
I suppose what matters most is how Trey Parker and Matt Stone feel about it, and if they wanted to take any action.
For the record, Jorge, I enjoy most of your contributions on BWW. The perspective you bring is refreshing - even if I don't always agree with you. 
of Gangnam Style on YouTube...
