Point well taken; you're definitely right in your market-awareness analysis. So, it comes down to performance, or more importantly, perception of performance. Is Band 25 good enough throughout Sprintland to serve the typical LTE market to the point that the press reports favorably on Sprint vis-à-vis T and VZW?
I have to believe the answer is ”no”, else Sprint wouldn't be spending so much for this buildout. As someone who wants Sprint to succeed, it concerns me that the hot new phones (e.g. Moto X) are (mostly) Band 25 only. (One Sprint MVNO, Republic Wireless, is betting the farm on the Moto X and Band 25. I find their WiFi strategy intriguing and innovative, but if the backup LTE - Moto X Band 25 - is wanting, the whole business plan dies.)
I'll rephrase my question: Is Band 25 good enough to keep the masses happy?