Earlier quoted context omitted.
I'd argue, and think GIMP is a good example, that products can fight off open source alternative adoption by being free to certain groups. Piracy, student discounts, shareware, limited trials. You could still consider this a win for open source, as it stops market abuse and restricts those paying to the people who depend on the software for business reasons and who haven't had their trust sufficiently broken that the…
That is not a win for open source because reducing payments is not a goal of open source. Assured continuation of availability and ownership of user's data is the explicit goal of the FOSS movement as stated by RMS. That means that it will continue to run on your hardware, and won't lock your data, and you can fix the bugs and suit it to your purpose. Money was never the issue.
https://lwn.net/2001/0301/a/rms-ov-license.php3
So it's not totally black and white, there's tactics and strategy involved. The less money going to Adobe, the less power and control they have. If they can force you to pay, they can force you to do other things. If they can't force you to pay, then they can't force other things as well.