Based on this, these cliffhangers are purposeful because characters from multiple episodes all show up in together here. Episode 7 ended with the Watcher himself being shook but Ultron-Vison. So maybe this is a threat big enough to the multiverse that the Watcher has to intervene and bring together heroes from all these different What If scenarios he's been watching to stop Ultron-Vision (who also has all the Infinity Stones.)