I think the issue is coming from how much juice it takes for him to leave the planet. for some reason superman never goes all out enough at first to make it unambiguous. like since he was trying to reserve energy he would not use it all to make the jump but if he still had enough gas in the tank when he did do the jump why did he not just do it in the first place at 100% plus all the reserves. im just saying its kinda weird feat, would anyone that could create the escape velocity be able to shatter the planet or was it superman's sheer force included. idk