It makes sense that those who've stayed on under Oracle have a favorable opinion of how Oracle does things: one might say they are self-selected for it.
I guess, except that the entire top technical leadership has remained unchanged for thirteen years now -- something Sun wasn't able to maintain for Java -- and they couldn't have known how things would turn out back then. Also, it's not about "how Oracle does things" but "how Oracle runs Java", which is probably quite different from how Oracle does other things. Given the outcome, it's hard to argue that Sun was a better steward to Java.
Good point but still interesting considering Oracle's reputation. One could argue that even those still at Oracle would say "we don't like it but we didn't find something else... we're used to it".