The old way you would need to put the phone into USB Storage mode to view it like a thumb drive. This would prevent the phone having exclusive access to those areas.
This way the the phone still retains full functionality while plugged in at the expense of some explorer functionality
I don't know move is a general Android one or just Samsung specific but it allows full file navigation and only interrupts phone functionality on a file or folder basis.
Kies gives you full thumbnail view but it's still bulky though a lot less quirky and crash prone than it used to be. It even now starts up in under 2 minutes.
And yes, If I have a bunch of photos I want to assess on the PC I copy them over to a temp folder first. That or use Airdroid or Kies Air.