Since this is the intended behaviour, I don't think it qualifies as a bug in the augeas package in Ubuntu. Augeas upstream would be a better venue for discussing this sort of change - particularly since changing the tree would break everyone else relying on the existing behaviour.
Since this is not a bug in Ubuntu, I'm marking this bug as Invalid in Ubuntu, but feel free to raise the issue elsewhere, or even to continue to discuss it here.
Thank you for your report.
Since this is the intended behaviour, I don't think it qualifies as a bug in the augeas package in Ubuntu. Augeas upstream would be a better venue for discussing this sort of change - particularly since changing the tree would break everyone else relying on the existing behaviour.
Since this is not a bug in Ubuntu, I'm marking this bug as Invalid in Ubuntu, but feel free to raise the issue elsewhere, or even to continue to discuss it here.