DD's team has the pitchers throw BP once a week during practice. Not the same as Bill throwing BP but better than nothing. I know some (typically pitcher's parents..lol) don't like that idea but if the pitchers know this ahead of time they can work it into their throwing schedule for the week.
I do worry about my DD getting hurt, but much less now (on a serious, older team) than before. It was the goofing off and silly stuff that would result in an injury IMHO.
I would love for her to get more experience pitching to hitters but honestly really, really want the girls on her team to get more hitting practice with live pitchers.