Listing says that it does indeed have MEI switches. Never typed on them, but I'll take your guys' word for it.
You can't type on MEI switches. They are that bad.
I suspect Datalux's real market is not programmers, writers, or anyone who actually types. It is the 'dirty industrial' market. Their keyboards are very lasting in a dusty workshop that will probably kill most mechanical keyboards because over time dust will enter your Cherry MX switch housings and messup your actuations. So the Datalux users are the type of people who won't type much, but are likely to type with dirty hands.