Going on with this theme, it's worth noting that Ponda Baba's arm was bleeding after Obi-Wan cut it off in the Mos Eisley Cantina. So if we take earlier as better, in the OT Lightsabers aren't even necessarily hot enough to cauterize an arm. During the sail barge fight, we can also see that Jabba's henchmen are reacting more like they were hit with a bat. We see multiple guys take full-on hits only to be knocked back, completely intact as if not even taking a cut. So in the OT, lightsabers really didn't have that much cutting power or heat at all.
Even in the before time (During the prequels long before even Disney Star wars even facebook and twitter) there was a joke among star wars fans that lightsabers were as powerful as the scene/plot demanded it'd be.
I hate it when people use the whole Qui-gon melting the blastdoors scene as the go-to feat for how powerful a lightsaber is/should be and how all of these other instances are the result of outliers/bad writing when The reality is no lightsabers were not meant to be that power and the blast doors scene was the feat that was inconsistent. I can count on one hand how many times it's been done even in extended material, and of course, there is a question of, if lightsabers are so hot they can melt steel like butter,
1. How is anybody even able to wield them without getting at best 1st degree burns?
2. Why do Anakin and Obi-wan have to rely on droids and hacking computer systems to open blast doors when they have a weapon that can double as a skeleton key?
now don't get me wrong having sabine recovering in a hospital bed was still cringe, at the very least we should have gotten a scene of her floating in a bacta tanka ala Luke in ESB, but I don't think lightsabers are the instant molten blades of death that some fans especially modern ones, make them out to be.