I had never realised that Amigas were used for Lynx development. I guess it makes sense. PC's back in those days were XT's or 286's with Hercules or Tandy graphics adapters if you were lucky. Completely unsuitable for any kind of games development. Amigas were also used in the development of many GBA games. The first XBox 360 devkits delivered my Microsoft were Apple PowerMac G5's.
Not forgetting, of course the Lynx was designed by the same guys as the Amiga- RJ Mical and Dave Needle. I even see David Needle wrote the development docs you have there.