single-xt approach in the standard

Do you think that the Forth standard should recognize the classic single-xt approach as possible for implementing a standard Forth system?
The classic single-xt approach implies that only one execution token (xt) is associated with a name token (nt), and only one name token is associated with a word (a named Forth definition). And words whose compilation semantics differ form default compilation semantics are implemented as immediate words.
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Ruvim