In my experience it's common for a significant portion of developers to undervalue their skills and the value of the stuff they make. So - no, it's a not a dick move, and the large majority of people will get why you did it.
Now as for the rest - there's always someone who responds to any change in a negative way. Ignore these people (almost always). Only get worried when you make changes or do 'something', and no-one seems to care; even a negative response is indicative of interest in what you are doing.