Expecting these tools to somehow work magic and be
100% bug free is
 an unrealistic expectation and most people who expect this are
 drastically underestimating the complexity of tools involved. 
I don't expect any software to be bug-free.
However, when they not only don't document enough for users to inspect
and/or construct config bitblobs on their own but threaten "trouble"
for those who try to deduce that information, their tools - quite aside
 from the problems inherent in running them at all -
must be considered 
part of their product, with similar perfection requirements; bugs
in
those tools are just as crippling as bugs in the hardware, under those
circumstances.
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