QoE is definitely an industry term and it belongs there.  It really isn't a fit for the customer jargon because customers have a 'service' not an 'experience'.  They wouldn't call up their ISP and say 'my experience sucks', they say 'my service sucks'.  So QoS naturally fits in there. 

From a business side, 'Experience' is a better fit.  If you're doing metrics on customer 'support' lines, the customer 'experience' is often in that language.  We're trying to drive loyalty and value home by giving a customer a better experience on their service.