I do not understand why so many people think babies need bland food. There is nothing wrong with putting seasoning, ie, herbs and spices in food as long as you are careful with sodium content, from 6 months!! The op is clearly aware of heathy options for weaning babies.
The problem here is that her friend doesn't seem to be following advice and is pushing baby to eat very low fat, not very nutritional foods and drop milk feeds when the baby is losing weight. I don't think there is anything wrong with giving a friend some carefully thought out advice when it comes to weaning, we're all learning! My LO literally ate everything we did from about week two of weaning, common sense means recipes were adapted, he was watched carefully and never once choked or had any kind of reactions!