This is very type specific isn't it? My 737 doesn't give me an more thrust in the N-1 case - and I'm happy it leaves that decision to me
The 737NG recognizes an engine failure (for the LGTU) by the N2 value, if that is below self-sustaining the LGTU will activate (among some other variables) - I suspect it could be similar for the Embraer? If so, a seizure will also trigger it...