Purely from my own perspective, if this is deep then I'd like to see a 'deeper' dismissal in that case. I read the first 4 paragraphs, and I didn't see anything that warranted the word 'crazy'.
Developmental problems? Maybe, although I'd honestly like to see some stronger evidence from people claiming that. Non-typical learning styles? Maybe? But we're talking about a 5 year old, temper tantrums are completely normal.
A lot of commenters here arguing fiercely that there's something deeply wrong with a toddler who's used to being in a physical space with physical people within a specialized environment, having a different reaction to being sat in front of a static screen for an extended period of time in a home setting.
A lot of commenters dismissing the idea that virtual meetings might be more draining or difficult for some people, which seems very... I'm surprised to see that attitude on HN of all places, we should know better than anyone that different people deal with isolation and physical proximity in different ways.
If the original poster can point to specific language that makes them think something is wrong with the parent or child, then they should point to that language. I think it's inappropriate and shallow to throw around labels like 'crazy' just because a child is misbehaving.