I should have known better, no way it would take 20-25 min in the oven to cook raw potatoes (even roughly chopped into bite-size pieces!)
I cooked it twice as long and then fished them out and cooked for 3 more in in the microwave! I will cook it for an hour in the oven in the future, or even longer!
I read comments underneath and the last of over 80 of them mentioned this issue and then comments have been closed.
p.s: I replaced fancy chill from the ingredients list with a tsp of cayenne pepper also there's no mention of rapeseed oil in the list of ingredients and then you need it to fry chicken on it and I used skinless tighs