DS1's teacher rang for the first time this week to do his SEN review. We have been in touch briefly and intermittently via messaging, but a phone call was far better for just going over issues. I haven't sent any work into school because I've been marking and feeding back as we go, and a phonecall enabled me to say that we've been going off piste and are finding the BBC bitesize resources very accessible for DS's needs. It was much easier dropping that into a conversation than initiating a text based conversation which could easily have been intepreted as more critical (and we do have a lot of critical pushy parents a the school.) I have had message based check-ins from DS2's teacher enquiring how the family is doing.
Safeguarding is particularly critical at this point. Parents could be facing bereavement, loss of income (or long, traumatic hours at work) and the loss of support structures. Children have no escape mechanism, no playing with friends, no school, no clubs/societies ("safe" places with trusted adults like Scouting/ Guiding often pick up on safeguarding issues and disclosures). Families that did cope sufficiently may now find that they can't any more and have now tipped into the zone where child welfare is now being compromised.
We are now at a stage of school closures where schools would be returning after the summer holidays, yet there has been no holidays, no holiday clubs, no visits to family, no playing with friends.
As it happens, my autistic child is less anxious than usual, but it's been useful to talk to his teacher to address that the return to school, and any adaptions made are more likely to be a flashpoint and make requests such as being with his best friend in the event of measures such as split classes.
Engaging via email is valid, but it is less informative than a short chat. It is not spontaneous, it lacks tone. Worst case scenario it could be vetted/ controlled/ forged by an abusive parent, harder to do on the phone. That doesn't mean that anyone requesting text based communication over phonecalls is covering up anything malign, but it is why phonecalls are effective communication from the school's point of view.