Something to keep in mind, the problem is less Morhaime's own attitude about this particular thing but something that's endemic in tech in general these days. It's this attitude that the developers in general know better than the end user, because they have "the big picture" in the form of user statistics and focus groups. They let these factors become what drives development over the actual expressed needs of end users, and when confronted about it like Morhaime was, react angrily.
I don't know where it quite begins, but I think one of the highest-profile examples of this attitude is Apple, who have been notorious for decades for often making changes to their hardware and software that inconveniences their end users in order to simplify it or make it cheaper to manufacture, from when they removed the floppy disk drive on the iMac, to breaking legacy compatibility in their OS for graphics designers, or today with the rumored removal of audio jacks from the iPhone. Granted, some of these changes were in anticipation of advances in the market (i.e. the floppy drive) and were borne out. But as a tech giant, Apple's size and clout tempt other tech companies to imitate them, often without understanding the underlying reasoning behind Apple's decisions.
We see no better example of this than the debacle of Windows 8. Microsoft's attempt to reinvent itself as a mobile-focused company backfired completely when it became apparent to the end user that laptops and desktops were being ignored or hobbled in the equation, from the removal of the Start Menu to the replacement of solid, highly functional and flexible desktop applications with full-screen, simplified Metro apps. The backlash was so severe that Microsoft was forced to fall back and regroup in making Windows 10, begrudgingly re-adding a Start Menu, but one should note that this Windows 10 version is, ultimately, just a slightly reformulated version of the menu from Windows 8, and still, fundamentally, a Metro app. Amidst all this backlash, the common refrain from Microsoft's most zealous fans was that Microsoft knew better, that user statistics "proved" the Start Menu was obsolete.
Microsoft then stuck its foot in it again with the Xbox One debacle, initially insisting that the device would always be on, always connected, come with a mandatory Kinect webcamera and motion sensor, and not support backward compatibility in any form. Although this time consumer outrage successfully forced them to change their plans ahead of the Xbox One's launch, it showed how glaringly out of touch Microsoft was with its end users. An infamous twitter exchange by one of their social media interns, Adam Orth, with a friend, heaping scorn on customers that might not have reliable access to high-speed internet, poured fuel on the fire.
In the end, if we could even change Morhaime's mind, it would not make in itself the difference we really need, which is an attitude shift in the tech sector in general.