Thats the problem with weekly serialization.
If Gojo & Sukuna dont heal themselves with RCT, the fight would be over in 2/3 chapters. The first one to land their blow wins essentially.
Which is incredibly counterintuitive to Gege wanting to draw what the Peak of Jujutsu could be.
This fight had it all - great panelling, choreography, narratives, battle IQ, hype moments... no JJK fight even comes remotely close.