Sam Tobin-Hochstadt writes:
The draft makes a concerted effort to avoid hard decisions that might alienate any of the community¹. As a result, it is less of a standard than a description of the current balkanized state of the Scheme community. If real standardization of Scheme is impossible, then we should avoid trying, just as we do not put effort into a single standard describing both Scheme and Common Lisp.
¹With the notable exception of the majority of the community that favored R6RS.