Suleiman was right in his place everything he said was correct about mustafa thats why he got killed coz he always had pride like no one and put himself at sultan’s place
Mustufa was just as entitled as his monther mahidevran they bith think they have the sole and prior right on Suleman's legacy but they both forget its only Sultan's right whom he choose as his heir
Nothing guarantee that mustafa's descendants will be better, however its selim's fate for aschended the throne and who you are asking god's plan? Do you think you more know than god?