I think it's mostly unfounded, but companies do avoid this for reasons other than wanting to directly control their users. I worked for a company where everything was Apache 2, BSD 3-clause, MIT, or similarly licensed. Since we distributed source regardless, this means less control over the users, even though it means they have the freedom to not pass it on to their own users. Our lawyers absolutely lost their shit at the suggestion that we include the GPL. Because a bunch of our customers absolutely lost their shit at the slightest hint of GPL, because they don't want to be sued for unintended virality.
Hear that, folks? In a world that's increasingly focused on sustainability and funding for software development, programmers with business aspirations should take note:
If you're working on something that you hope to (eventually?) make money from, but you also want to benefit from the collegial atmosphere of open source, then choose the GPL. This simple decision instantly eliminates a whole subset of would-be competitors, who you now don't have to worry about undermining your business or otherwise threatening your source of income while they rely on being able to use your own work against you, since the GPL automatically places your work in their do-not-touch category.
