Sparks, you make a good point. We have often taken different sides in this debate. To me, this is an A1 vs A3/C1 debate.
When you say, 'you become a dhv / your personality is a dhv' I think you are talking about a 'fully calibrated' person, whether that person is a PUA or not. I am somewhat opinionated,

definitely take this as contribution to debate -- I neither get my personal worth tied up in my game, or in my discussion of topics.
I once read somewhere that the way people say "Fine, how are you?" is a preprogrammed, automatic response to "How are you?"...in other words it's canned material. I'm sure you can find other examples...people always ask, "Where are you from?" "Did you go to x high school?" The difference between this and a routine, is that
1) A routine is generally longer, which predisposes it to being more thought out, making the person delivering a routine more 'guilty' (guilty = social conditioning) than an AFC asking "Do you come here often?" rather than a GPUA asking "Who lies more?"
and providing a backstory that he memorized before.
2) Routines get traded online, can contain lies, and are generally less 'personal.' Only the better PUAs know (I cannot even vouch for this yet) that time in the field will teach you to 1) improve your delivery, which most people know, and 2) imPROV your delivery, which means you can read a damn billboard on the way to the club and have an interesting question. It means you can hear a joke on the radio and pull an opener from it. It means you are free from the internet, the VAH, and all the trading that goes on in the community. This is another step of social calibration. Oh man, this post is going to be a novel
Canned material is meant to get people with bad bl, etc, into set. After that it's meant to deal with HB8.5+, SHB, girls w/ high bitch shields, etc. I have to stress again that this is about game, not about egos, I've run into alot of rhetoric about inner game that puts down canned material. I think it's all fine and good. To me, game is game, it's an answer to makeup, fake nails, $100 hair dressing, flashy clothes, and stiff, snobbish 'bitch shields.'
It's not a DLV. It's a hoop you jump through to get noticed, it's the same as companies not even wanting to talk to people wanting a job unless they have certain qualifications (certified xyz, college graduate with a 3.8 and above, internal reference, etc).
That doesn't mean anyone else who wants a job is DLVing because they fill out an application, it just means you can't always show up and expect people to 'like you for who you are.' Finally, and most importantly, using canned material, etc, is part of being calibrated. I'm not saying it must be used in all situations, but that there are certain situations where it just works better, and framing openers, FTCs, and A2 material as a DLV is just another way of saying any of the following.
1) I think people should like me for who I am 100% and that's it otherwise they are not worthy
2) I have no flexibility regarding how I choose to approach others
3) I came into this community with my socially conditioned ideas and can't think outside their box
4) Natural game is the only way to go, the only true way to go, etc
5) I do not understand the true meaning of A1 and A2 material
6) I think the only way to approach 'properly' (properly = social conditioning) is to go immediately into SOIing the girl (examples below)
....such as,
'Nice necklace, where did you get that? ... '
'Is that a pinot grigio or a syriah?...'
'This place is crowded tonight, huh? ... '
'What's a good looking woman like you doing... '
'Check out those hippies over there...(smirk), '
Finally, dude, this list continues, there are other reasons for a person thinking this is the only and best method of approaching. Bottom line, don't let your good conscience stop you from improving your game. Don't let your conscience sway other people's confidence in improving this area of their life.