There's nothing special about it. I got my driver's licence in less than 30 days via this route with METV.
I doubt this residential certificate will enable you to e.g. open a bank account as it clearly states on the letter that it is for the purpose of obtaining a driver's licence.
It's probably this itinerary but I don't undestand why it says self-transfer and why he has posted the screenshot of "Self-Transfer"
(which means that you have to collect your bags and check in with another airlines, meaning you have to clear border and security, 1.25h is a bit tight.