That's because it's a male's dream to be the only one able to rescue the helpless "princess" that can't do jack to save herself and she needs to rely on the bulky man and almost gets wet while looking at him.
So, it's probably rather hard to be outraged about that specific thing, when the whole scene is already so male oriented ;).
The whole show is super bad in terms of... anything.
"I can now parry 10 swords in a single breath"
"I can now parry 100 swords in a single breath"
"I can now parry 1000 swords in a single breath"
"Dude, calm down and get your 5 yo child away from the script! - W-Wait... *YOU* wrote that?!"
The way how he "parried" them is also just beyond silly... like... he farted a big wind and *woosh*, all the hanging wooden swords move a bit
"I'm now powerful enough to parry 1000 swords hanging from a line - yet I can't do anything else"
That's basically what other animes use as jokes, but in this show it's supposed to be taken seriously :D