"Or, perhaps, he just has an uneasy feeling about it because it's changed a lot without a good look over."
Perhaps. I've spent enough time refuting baseless conspiracy theories that I am not about to promote one. I fear that I let myself become a bit of an Ext4 cheerleader, there.
Not intended. As I'm keenly interested in Ext4, Btrfs, and XFS. Clearly, all three of those have parts to play in the coming years. That Ext4 happens to be at center stage now should not detract from the fact that the trio is a team.