Honestly if people don't like doing the Story quests then they probably aren't going to like heavensward either since it's story questline is supposed to take as long as 2.0's story did. The Main Scenario is simply a core part of the game. The patch quests will be a blip over all in the times its going to take for people to go through the story all the way to 60.

Plus, just having people move straight into Ishgard would leave them with no idea of what was going on with the story.

The only complaint I can see with some traction is that new players might want to play the extra Jobs. However since they wouldn't be able to play those jobs till 30 even to start with they would still be levelling another class at least 30 levels. By that point its hardly a brutal chore to go the last 20 levels to gain access to the Job. If it is for them then they probably won't like the game in the long run anyway.