You have cherry picked one comment from Richard Stallman, which was just his personal ideology. David Edelsohn replied this:
GCC is working toward re-factoring its code base toward a more
compositional approach for "toolification". One can look at
presentations from the recent GNU Cauldron 2013 for discussion of the
topic. David Malcolm also has created patches for the GCC backend to be used as a JIT.
The assertions that FSF policy prevents technical development and
innovation simply is not true.
Maybe GCC was "deliberately obtuse", but as I see it, steps are taken to change that and enhance GCC for tool chains and to be used a library just as LVMM is.