Yes... and I tried last night to explain what a "typo" is:
A typo (typographical error) is:
The term includes errors due to mechanical failure or slips of the hand or finger, but excludes errors of ignorance, such as spelling errors. Most typos involve simple duplication, omission, transposition, or substitution of a small number of characters.
Typographical error - Wikipedia, the free encyclopedia
People all too often incorrectly minimize mistakes or errors by calling them mere typos. Typos can sure make a difference, like typing "heat" instead of "heart", but that's not what happened here.
I hope that it was explained to the juror's satisfaction... and I doubt that it'll break the case.