Open is the new closed?

Thanks to FACIL forum, I've just read the article Open is the new closed? - Bringing transparency to Open source by separating Open source licensing models and Open source governance models .. that worries me about dependency as this sound exactly like a problem I previously was about to have, I'll mention it next. What worries me the most is :

c) 80/20 rule for Open source development. 80% of the source is 'open' i.e. under whatever license is visible. You then need a further 20% to productise it. That's definitely 'closed' in many cases since it is tied to intellectual property and / or revenue models.

If the 80% in question is stand-alone, or almost, by itself then it's not a bad situation as it's mainly selling a commercial plugin to a readily, or almost, product available with open-source license but if the 80% revolve around the 20% then the bigger part is much harder to make use of it. Without remaking the central part which will probably involve high complexities, which make for exponentially hard development, it will most likely take less time to remake the whole project itself.

If open source revolving around proprietary is common place in commercially developed open-source product then there's a real effort needed to label the likes so the open-source community won't take the blame when organizations have failures and publicly discloses them. A great community like open-source, which bring much to humanity, really deserve to take credit for their great accomplishments ; they shouldn't take any blame from dubious practices made with their name. Perhaps licenses should be enforced to include those cases (80/20) mention the level of dependency of the commercial part.

To come back to my personal experience, in the early days of the internet, when 56K modems just came out it was quite in demand. Such a modem was offered for about half what normal ones cost although would potentially be a big problem. The modem was called Winmodem (by U.S. Robotics) and assumed it had such a name to show Windows compatibility but after reading reviews, I found out that it needed a crucial proprietary Windows program or driver. At the time, I often needed DOS as Windows 95a crashed monthly, thus used DOS to get around in Windows file system in order to fix the problem. I needed the modem to connect on the internet, BBS or directly to other computers to get the needed help and files. With a winmodem I would've been tied to Windows and needed to bother the few neighbors having computers.