Quick meals have been disabled for the lot challenge on fridges by design, so yes, it is an oversight that they do still appear on microwaves.
Personally, I feel like it would make more sense for them to disable all autonomous quick meals with the lot challenge, not disabling them altogether, because then we lose out on a bunch of cool recipes, which ultimately restricts our gameplay. Like it seriously won't allow my Sims to have cereal if they want to cook with their own groceries? I hope at least they'll add some of these recipes into the "Cook" menu.
I agree, we can't have drinks (juices) with Simple Living? That's a big let down!
