Grand Mutagen ability possible typo?

[Kevin Murphy 340]

Is this a typo or intended?

Grand mutagen: The alchemist’s mutagen now grants a +6 natural armor
bonus, a +8 enhancement bonus to one ability score (Strength, Dexterity, or Constitution), a +6 enhancement bonus to a second physical ability score, and a +4 [b]enhancement[b/] bonus to a third physical ability score.

Noticed that most of the others had been changed to alchemical. The True mutagen also has the same wording. Is this intended or were they overlooked?

[ProfessorCirno]

Kevin Murphy 340 wrote:

Is this a typo or intended?

Grand mutagen: The alchemist’s mutagen now grants a +6 natural armor
bonus, a +8 enhancement bonus to one ability score (Strength, Dexterity, or Constitution), a +6 enhancement bonus to a second physical ability score, and a +4 [b]enhancement[b/] bonus to a third physical ability score.

Noticed that most of the others had been changed to alchemical. The True mutagen also has the same wording. Is this intended or were they overlooked?

http://paizo.com/paizo/messageboards/paizoPublishing/pathfinder/pathfinderR PG/advancedPlayersGuidePlaytest/finalPlaytest/alchemistErrata

;)