No, I am saying that you do NOT email the list period. And emailing the list violates G2A 126.96.36.199.
Limit access to those who have merit badge– related responsibilities, such as advancement committee members and chairs, or unit leaders and selected assistants. Scouts should not have access. Their interaction with the Scoutmaster in discussing work on a badge, and obtaining a counselor’s name, is an important part of the merit badge plan.
The scout should be given (in a personal discussion) the name and contact details of one counselor. If that doesn’t work out, then they should be given a different one. A scout should not need a handful of counselors for a single badge. If there is some issue that needs to be dealt with (say ensuring a counselor won’t want scout to start over, or able to deal with something such as ADD), then the appropriate thing would be for a troop leader to call counselors and find a suitable counselor.
There are scouters that I would tend to not send my scouts to. But the vast majority of the ones in my area are great people to whom I welcome introduction to my scouts. And for the special cases I find nothing wrong with a call to another scouter to front fill a few details. Even great people who have no issues with particular nuances of working with interesting scouts seem to like a heads up occasionally.
And if I had a scout who needed just one item and the first counselor wanted to start over I would advise the same scout to come back to me. That is part of why I am here. Some may think I coddle them. Others may think I don’t protect them enough. At the end of the day I am the one that is the SM and they are MY scouts. And I will encourage my successor to think the same and inject her/his own self into the role.