I would be ok with it as long as its optional. I have 8 level 80 toons and all of them are done with Claw Island and a few more chapters.
The thing is after level 60 the story chapters become rather uniformal no matter what race/class combination you have. The big difference is in the first 10 levels, cause those are affected by what combination you choose when you make your toon initially.
I would much rather see a sort of phasing for parts of Orr when you have finished the last chapter of the personal story. It could be full Straits of Devastation and parts of Malchors Leap going back to wildlife and nature