Ignoring a problem doesn't make it go away. Bypassing the problem makes it worse for everyone else who doesn't want to go through that route.

I think the devs are doing a good job so far of trying to make older content remain as active as possible (I don't say relevant because it's practically impossible for any MMO to accomplish that), compared to most other MMOs I've played. The very idea of a leveling potion basically spits on that concept.

If anything, the devs need to redesign the pre-HW MSQ. I've seen some new players hit 55 before they even reach HW, and virtually every new player complains about the wall of fetch quests from the pre-HW Level 50 quests too.