I couldn't tell from the video "Perfect Self Arrest Technique (movie)" whether you had crampons on for the self arrest. If you did, the fall was slow enough that they weren't a problem when you kicked your toes in -- soft snow, low angles. You undoubtedly know this, but for anyone else who's watching, I'd recommend digging the knees in, not the toes, until you're at a complete stop. You are likely to be wearing crampons when you take a fall, but one must weigh (1) being able to stop easier if you kick your toes in vs (2) breaking a leg or starting to ragdoll.
But you knew that! Nice trip.