Is this a controversial stance? It seems like common sense, unless I'm misunderstanding something.
EDIT: To clarify: I assume he's saying "don't add accessors by default for all private members unless you need to, because you can always go back and add it if you really need it", which is common sense for any project, external or internal. I'm pretty sure he's not saying "don't add accessors, just use public members", which is controversial, IMO, even for internal projects.