Hi All... here is what Beth (from Enki Ed) sent to me when I asked her specifically about this:

Beth:
"Handwriting issue is the neurological one - midlines. So asking them
to develop those challenging skills at the same time as they are
writing letters and learning to read is too much. That is why we do it
in the Form Drawing context so there is a lot of space and time to
work at their level with getting the looping before they are asked to
apply it with all the other skills that writing takes - including the
binocular vision and eye tracking that don't fully come into until 7
or 8. I would love to learn more about her system but can't for a few
months"

Beth suggested being aware of this issue:

Beth:
"The question I have on glancing at it relates to strong back/soft
front. Is there a balance between the strong, boundary lines of
the "King" and the fluid compassion lines of the "Queen"? I sensed
that there might be an overemphasis on the latter. Keep your eyes open
and please let me know."