They could learn a lot just by looking at the routes open for such new players. There is simply just a limited number of vets who do things on a regular basis (not even counting in time and language barriers) and even less who have the patience and time to help undergeared people. This is what i mean saying, that the standard grind route open for vets, is often not valid for new players (or the players who prefer other content like pvp or old world for example). And "tank and spank" is good practice and fun for some, even if it is not trendy atm.
Nobody will get hurt by adding alternative routes or conversion factors. The regular farm groups will still be faster, BUT sooner or later there will be good geared new people to rejoin their ranks. Especially as new player, i think, the least thing you want to do, when the "real" game starts at 80, is to grind and follow orders in a few chosen instances, while there is a wide open world and lots of different instances to explore with many different people