Sprint was already experiencing a backlash and social media uproar before it started deploying LTE or selling LTE phones. Then it was receiving the backlash when LTE devices were being sold but no LTE was available. And it is still receiving the backlash with LTE devices and some LTE launched. Sprint is constantly being barraged by "the backlash." So it might as well do what is best for customers, sell the latest devices available and launch LTE as fast as possible, opening it up to customers at the very first moment possible at each site.
What Sprint should do differently is not announce market "launches" until later. Customers are expecting better coverage at market launch. However, if they say they are opening up early when and where available, but the market will formally launch in a few more months, this would probably be much better from a customer service standpoint.
I'm experiencing this in Los Alamos, New Mexico. I have a Verizon LTE hotspot. I have been using LTE in Los Alamos for three weeks. However, Verizon has not launched the market nor show coverage on their maps yet. Verizon customers are overjoyed getting LTE in advance of the market launch. They think they are special.
Robert