Maria, no one sensible is going to be horrified at what you did. Exaggerated predictions of what people are going to say about weaning at 6 mths minus whatever time raise the temperature of the debate, and it's totally unnecessary.
Responding to what a baby seems to need, like you did, makes sense. Babies don't all walk, sit, talk on the same day, and readiness for weaning is a developmental process, just like them. The difference is that babies will walk, sit and talk without any conscious or deliberate input from their parents, as long as the environment enables them to do so. With weaning, in our society, with tables, cookers, and calendars (all modern inventions and unknown for 99.9999 per cent of human let alone mammalian existence), parents decide to offer solids knowingly, rather than just accepting the baby will reach out and take something from whatever his mum is eating, when he's ready.
Given the massive cultural difference between that and what we do now, it's reasonable for health and nutritional needs to be worked out, and guidance issued.
An HV who doesn't know the reasons for the guidance being six months is simply poorly trained.