Some of these are considered invasive weeds in wild areas, where they displace native wildflowers. It's not that I think people should never grow cornflower, etc, in their gardens. I just object to a company encouraging people to spread around invasive alien plants in large numbers. It suggests that this company either doesn't know much about wildflowers, or doesn't care. The compliments from all and sundry continue to grow.
People stop their cars all the time.
I was so very pleased. They had flowers coming up in that bed for years, and a changing group - the annuals gradually were taken over by the perrennials. It was very nice. Use the contact info at the top of this page if that's what you want to do.