No - rupor-enable-adb is for installing and activating ADB package and it is totally separate functionality.
You have to attempt to read Google translation of original Russian forum
. Otherwise I would have to translate everything - which I would do if and when time allows
In order to use additional functionality in rupor-jailbreak you have 2 ways:
1. Enter recovery mode, wait till progress bar reaches right position and changes color to gray (it is noticeable - but you have to look for it!). In the rapid succession push HOME, PREV, MENU, NEXT, BACK. You have 15 seconds to do so - if you missed your chance device will reboot normally. If you did everything right - you will enter rescue mode - you will see new disc available and will be able to use terminal.
2. After installing AMR you will see PRS-T2 Updater.package at the root of internal memory. Do not delete this package. After booting into recovery mode device will automatically and immediately enter rescue mode with disk mapping and terminal - you do not have to do anything.
For all of that - no OS Firmware or any firmware updates should be on SD card or in internal memory.