While working for companies, many devs have had the frustrating experience of finding a library that perfectly solves their problem, only to discover that it’s GPL3 or similar and thus strictly off limits due to company policy. Especially if repeated a few times that’s enough to inspire use of permissive licenses, to help avoid that frustration for their future selves (should they change employers) as well as other fellow corporate devs.
If you can't use a library because it's GPLv3, then the company would need to invest some time and money into reimplementing the features they want. Guess who gets more paid work?
