The SD card reader can be a standard card reader.
You also do not have to use TIA to store the project files in the card.
You can for example copy the existing program from the card and save it to a backup server.
You can send the card content in an email.
You can receive a card content by email, and load a program update that way.
And you can revert to a previous card backup (if the update is not good).
All in all it is a simple and good functionality.