Apparently, FSF is too preachy and OSI is too business-y and thus following "those who forget history are doomed to repeat it" style, a new, third movement of producing software that is free to copy, free to modify, etc. will naturally arise on its own.
There are allusions to brogrammers who know nothing more about OSI than 'It's on GitHub!!', I'm not sure how charitable that is but I can say for several years that no matter how many wiki walks I've taken down the history of Linux, GNU et al which is probably where some of those brogrammers fell as well. IDK the difference, does it really matter, might as well stop looking into it any further than that.
The schism and lack of unity between church of FSF and church of OSI has probably had a net detracting effect on getting software to be more permissible, even if the absolute effect has been way more FS/OS software than would be expected otherwis.
I could be totally wrong, I didn't show up for computing until the Win 95 days.