I think it's the words used that are confusing (since they are in quotes, I presume it's ROL's words, not Drobe's reporting, that's the problem):
"We are very interested to find out what the real level of demand is..." would seem to be best addressed to a wider community. The easiest 'wide' community is ROL's current subscription customers, viz Select and Foundation subscribers. Using the Select mailing list is choosing a subset of a subset.
Perhaps some interested party could repost the message on the Iyonix Smartgroup? *That* would reach a relevant audience.