1) Yes, it's because the ECAM may or may not 'know' that you voluntarily set the electrical emergency configuration, depending on if the Avionic Smoke ECAM was triggered or not. If it was triggered, it will display a modified ECAM for the ELEC EMER which should not tell you to reset the GENs, but if it was not triggered it will display the 'normal' ELEC EMER ECAM which tells you to reset the GENs.
3) A few years ago there was a procedure to switch off the bus tie and then switch off one GEN first to see if it eliminates the problem, if it did to leave it off, if it did not eliminate the problem, that GEN was switched back to on and the other one was switched off to see if that would solve the problem. I do not have the old FCOM here, but I think it already gave you the option to select electrical emergency configuration if all of this didn't work.