man, the author is busy. Woundwort is even there and not everybody knows that model unless you are either a gundam fan or a gunpla fan/builder as well.
For context, here: https://gundam.fandom.com/wiki/RX-124_Gundam_TR-6_%EF%BC%BBWoundwort%EF%BC%BD
If you are going to try and cover your team from everything an enemy throws at you, wouldn't it be better to learn it from powerful people? I mean, you have to be so much stronger than the team to soak up all that damage and who would be better to get you there than this guys.
Ok, I think I get it know. That image where he remembered that he ripped his heart out was not his but it was Pochita's memory where he escaped from his fight with Makima and meet Denji.
THEY HAVE BECOME ONE