WI Patriarch Michael I deposes Emperor Isaac I Comnenus in 1058-1059?

In 1058 Ecumenical Patriarch Michael I quarrelled with Emperor Isaac I Comnenus who he himself had put on the throne as a puppet (Michael went so far as to wear wore the purple shoes ceremonially reserved for the Emperor) over confiscation of church property. Michael was so enfuriated that he planned a rebellion to overthrow the Emperor and claim the Imperial Throne for himself. He started wearing the Imperial Regalia publicly and called for popular uprising in his sermons when he died suddenly in 1059, though there was no suspicion that he was murdered. The Emperor claimed that he was punished by God for trying to usurp his temporal powers.
Michael I was very popular with the masses in Constantinople and had he lived longer maybe he would have succeeded in claiming the Imperial throne.
WI Michael managed to kick out the Comneni Emperors and assumed the Throne himself?
How is this altering History? Any thoughts?
 
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