Oracle’s ownership of MySQL AB seems to have negative impact on its development. My concern, which is also raised in the article, is whether similar things will happen to Postgresql.
That being said, I agree with the concerns expressed by Bruce in his blog post. Or more precisely - I do understand why people in the community have those concerns, but I believe (hope) it's not going to harm the community.
This is why I am thankful that Percona [1] is already involved with PG.
Percona created their own mysql distribution [2] with a number of improvements, which was quite helpful while awaiting (very long) release cycles from Oracle, for MySQL community.