In body stabilization is not needed. If it really was that needed, then why haven't Canon or Nikon included it? And it's not like it's new tech anymore. I have shaky hands and not having I.S. is not bothering me at all. I only shoot primes and my kit zoom is collecting dust.
Every camera is a tool. HOWEVER, some tools are better than others. They just are.
I find Fuji X cameras the best compromise camera system. There's obvious hatred for it, because it's actually good and competitors and their users know this.