Those execs sound like terrible communicators. It’s hard for me to imagine a colleague acting this way in real life.
I've had plenty of people interrupt me to ask questions while I'm presenting - which I think is generally something to be encouraged.
When I've replied with "That's a very insightful question, we'll get to the answer in a few slides time" I've never had someone insist on continuing the interruption.
Thankfully they only attended our meetings once a quarter and never involved in matters beyond pontification.
If you can’t wait them out, or if they’re the CEO, find a different job.