At the risk of contributing something to this thread, I’ll mention that I didn’t like Han shooting the bowcaster three times. The first time made sense (Chewie was injured) and Han’s reaction was funny. The second time didn’t make a ton of sense (although you could argue he was able to do more damage that way) and the reaction joke fell flat because it was basically the same joke as the first time. And the third time was completely nonsensical - why wouldn’t Chewie shoot the stormtrooper, or why wouldn’t Han use his blaster?
The point of the scene is to explain how Rylo Ken didn’t just squish Finn and Rey. The Bowcaster is billed as being really powerful and then Chewie shoots Ken loads of times so he has a strong handicap during the much moaned about final confrontation between them.
I liked that duel a lot. It also made the crossbars on his saber make sense when Ken twisted them into Finn’s arm.