My exploration style is identical to that of the OP, and I share their concerns. The new system will undoubtedly slow down the sight seeing form of exploration. Added to that, for me personally, it will also likely add to the time it takes me to create exploration based videos.
All that said, I'm of the opinion that the changes are worth the price. I'm happy to adapt to the new system, because it is clearly better in many ways. We will have to wait until Beta to test for ourselves of course, but my impressions are that the new exploration changes will make this an overall much improved game. If that means I lose my current exploration style, or (more like the case) have to adapt my exploration style, then I'm all for it!