One big spot where I feel WotC really dropped the ball is with pre-5e SRD products. At one point, they committed to updating the SRDs for earlier editions into Creative Commons as well. They have since quietly gone back on that promise. The last official update was just about 2 years ago:
Today, we’re thrilled to announce the expansion of the fifth edition Systems Reference Document (SRD 5.2), which will include updated content from...
www.dndbeyond.com
IMNSHO, seeing that project through would go a long way in removing the bad taste in my mouth from the OGL debacle. But, as you rightly point out, few people are aware of this, and even fewer care. Which is why they can get away with promising it to make good PR after their major screw up, and then never follow up.