Because the shame-ification made it so that in all matters of state, governance, education, culture, economy...in matters of EVERYTHING, the West German systems are applied. There is literally nothing left of the GDR, none of the good parts, none of the bad parts, EXCEPT for MfS (Stasi) civil servants who went into hiding and took positions in now-shame-i-nited Germany.
Because the shame-ification made it so that in all matters of state, governance, education, culture, economy...in matters of EVERYTHING, the West German systems are applied. There is literally nothing left of the GDR, none of the good parts, none of the bad parts, EXCEPT for MfS (Stasi) civil servants who went into hiding and took positions in now-shame-i-nited Germany.