Gloeiwurpie, this isn't something I sucked out of my thumb - it's from a book written on the topic of feeding babies, written by a nutritionist specializing in babies (book called baby-led weaning). Some babies do vomit and just continue eating. But if it gets to the point of what RM describes then no.
You keep saying "tried adding more texture" and I'm not sure what you mean by that. Perhaps your little one has a sensitive gag reflex in which case, do what you must. Baby-led weaning is about following your childs queues with regards to eating and allowing them to experiment with food placed in front of them. At 6 months almost nothing actually makes it inside, I only saw a drastic increase in the intake of food around 9 months.
Not all babies have the excessive vomiting problem, but I've found that so many mothers are so unrealistically afraid of giving anything except purees for fear of choking.
Out of personal experience (with the 5 children in our family - none suffering from sensitive gag reflexes or excessive vomiting because of it) I can tell you that feeding purees or cereal as 'first foods' aren't necessary. *Most* babies can handle whole foods from 6 months
The idea is that you have to start giving them safe types of foods to play and experiment with from 6 months on.
www.baby-led.com/
There's a download-able pamphlet on the front page so you can read the key point of the book for yourself