Not mentioned in this article is how many people also dislike the feel of the keyboard. Add that to risking an out of commission work machine and it’s a big deal for consumers.
I used to split my work time coding at my desk and at a "comfortable" location (couch, chair, etc), but the thought of using the new MBP keyboard has me working almost exclusively at my desk with external keyboard.
Do you have any statistics on that? Anecdotally, almost everyone I've spoken to prefers the new keyboard over the old one, ignoring the key stuck issue.