I’m also in the not seeing the problem with a pan approach.
I’ve just watched the Morphy Richards promotional video for their soup maker, and I can’t see how this would save any time over a conventional pan. The soup maker has a saute function so you can saute your veg and/or onions etc like a pan. After doing this you add the stock and other ingredients, and only then can you close the lid, set the timer and wander off to do more interesting stuff.
You still need to chop the veg, prepare the stock etc like you would if you were making soup in a pan, and preheat the soup maker before adding any ingredients, the only benefit is that if you don’t want chunky soup it can mix it as it cooks. But it also has a blend function you can use after the preset cooking time is up, so it looks to take as long as just using a hand blender anyway.
Think I’ll give them a miss.