Why don’t add new feature Backup the whole MicroSD Card to Google Drive? with the files and folder intact
Because Google Drive can slow your upload in case you are uploading too much and have no plan; also, some SD cards are big (f.e. SDHC 32GB) and very few people want to upload such a bundle via device connection and many of them has f.e. only 5G free on Google Drive.
Google Drive now had 1TB, SD card 119GB, basicaly we can put anything in there
Not everyone has 1 TB. Also this could be fast battery drainer and many bloats can block it for “using too much data”.