... also crud example does not tell first name from last internally (but no one notices it because the fields do not get updated as you click on rows)

.. and circles example uses self-modifying code, and takes O(n^2) space, because the undo history contains deep copy of the state

now, this is not necessarily a bad thing, but it does make comparitions a little unfair, because other languages do more.

Yeah, it's hard to tell whether the apparent simplicity would make a mess in a bigger examples, but the Red examples are the most striking at a first glance.