if Open Water essentially equals "Beginner," then to my mind Advanced Open Water equals "Advanced Beginner."
Personally, I still see AOW as very much a 'beginner' stage, especially when you consider the nature of the skills and theory presented on those dives. There is very little 'new' information presented on this course - but rather, it is a chance to gain a safe introduction to fun diving, under the supervision of an instructor. Kind of like an 'artificial injection' of experience, rather than a structured development course covering higher level materials.
As such, I don't think that being able to take it soon after "Beginner" should make it meaningless. On the contrary, then it seems appropriate to me.
I did my OW and AOW back-to-back. I felt that was essential, given that (at the time) I was winter-diving, in fresh water quarries in the UK. OW taught me the core scuba skills, then AOW allowed me to apply those skills under safe supervision. If taken together at an early stage, then the OW-AOW relationship can be seen as simply am extension of OW training.
However, if a diver
has gone away and gained independant experience directly after OW training (whether that is 10 or 100 dives), then the
flexibility of the OW course (coupled with a good instructor) can mean that the AOW becomes an opportunity to either:
1) Investigate specialist diving activities (and trial the related training courses).
and/or
2) Conduct remedial and/or developmental training in core scuba skills. This is useful if the diver concerned has let their initial training lapse or still has weak areas that they wish to improve.
and/or
3) Develop a more advanced breadth of ability underwater, by adding new skills and/or extending their personal limits when under safe supervision.
I do agree that it could have been named better.
Yes, I agree 100%. It seems to be a natural human inclination to focus on the word 'Advanced', whilst neglecting to see that the word is related to 'Open Water' level diving.
Personally, I'd like to see PADI get rid of the (pointless) Adventure Diver level...and just rename AOW as Adventure Diver. Or, as you suggest, just call it OW+, or OWII, or 'Experience Diver' or something else that was equally less suggestive of 'advanced' diving.