To defend our business, we have to keep improving, but many of us don't want the anxiety of testing new things.
As Steve Blank points out, we don't have to go out on a big dangerous limb. If we keep our improvements small and get them in front of customers immediately, we'll know if we're on the right track.
Xconomy: Keep Calm and Test the Hypothesis, 2014-Jun-23 by Steve Blank
A proper MVP, Blank argued in that video, is a prototype with the smallest possible feature set that still shows potential customers how your idea can help them. Once you have an MVP, in Blank's process, you need to show it to customers, and get their feedback.