No I think you'll eventually be proven wrong. They make other blocks, the GIII is well within their capabilities. They say 4 bolt splayed caps, not 6 bolt cross bolted, plus thicker sections in some high stress areas.
They have an aluminum chevy smallblock for less than 2750, plus other cast iron chevy blocks. Some are in stock, some out. They blew the bottom out of the Oldsmobile head market and likewise last year, the Cleveland head. It seems that they're getting their casting technology down.
Machined in the USA. You know what that means, cast and rough machined, probably, in China.

R.