Suggest changing the verbiage to remind users that they can specify a new user's first and last names when enrolling them in a site.
Suggest changing "Note: Enter multiples each on separate line (no punctuation)" to something like
"Note: Enter multiples each on separate line (no punctuation). Name can be included with Email address first, optionally followed by last name, first name, all separated by commas, e.g. jdoe@yahoo.com,Doe,John"