Forth is not a language. It's an extensible instruction set. You like RISC. Are 31 instructions "RISCy" enough? :-)
I have wondered what Chuck's CPU designs could have become if they had been given more financial and intellectual support at the level that we see for the dominant machines in the world.
Chuck's first CPU NOVIX 2000, performed multiple instructions per clock without pipelining, Interrupt handling in 2 clocks, sub-routine calls in 1 clock and return was 0 clocks on many instructions. That was done with a ridiculously small number of gates.
In later years Chuck realized that a dogmatic use of only the data stack was not ideal and he added an a address register and a loop counter register to make the machines faster.
It would be cool to see someone carry these concepts forward to see what's possible.