@Rage
Respectable position, but Tanjiro said that he can't pursue too far only after the Swamp Demon moved further away, this doesn't mean that Tanjiro won't attack seriously when the Swamp Demon is close. Also, Twisting Whirpool pulls demons in and cuts them up so Tanjiro led them to a trap, and the demon was distracted while attacking Nezuko. Before this, the Swamp Demon demonstrated this:
In the Drum House, Tanjiro had a fractured leg and ribs, would collpase if he put strength in his movements, and was in a lot of pain by just walking, yet he demonstrated a sonic boom indicated by the circular shockwave in the anime (secondary canon overseen by author), he also scales with Zenitsu's Thunderclap & Flash since the Spider Brother can counter it with an attack:
Kyogai, the Tongue Demon, and the Horned Demon lost sight of the Mareshi before the fight and weren't distracted by him. They started arguing and threatening each other, the Mareshi slipped into hiding, and then Kyogai delivered the first attack.

At one point during the fight, the Horned Demon managed to slip behind Kyogai and rip-off his back drum. This shows that Tongue Demon and Horned Demon pose a threat to Kyogai even though he spams sonic attacks and can send his opponents flying away with his Spatial Manipulation. So transonic for them is fair.
As for the calc, I think it is an acceptable simplification and doesn't change that much; the Swamp Demon was aiming downwards and twisting his hand, so if Tanjiro wants to avoid a glancing blow he needs to move most of his head out of the path of the wrist around the timeframe.
@Insert creative name here 12
No need to repeate "anime doesn't take precedence!", no one is arguing against that. If you are implying that the anime is incompatible with the manga, then prove it. If the anime showed us the Temple Demon's backstory and revealed that he can breathe fire, it would be canon because it is compatible with the manga even though it is not shown in the manga.
Mom Demon still has FTE feat.
Your question toward Dargoo was built upon a strawman; its word is:
| Concerning this calc, would the angle of attacks limit the number launched to one slash per fish? If so why is that? |
1- During her attack on a seemingly off-guard Zou Houken, Mitsuri concluded that attacking him head-on was a mistake since decapitating him is useless; this implies that she will stop attacking him head-on and will therefore retreat to figure out a plan; being mid-air she needs to land first to ru, but she idn't expect an invisible attack. She can unleash more attack but: 1) It would be a waste of time, 2) It risks Zou Hauken countering her attacks. Gotouge already communicated the speed of the technique, as easy as moving her body; the style of choreography is often used to convey that the character is reacting. Are you seriously trying to argue that Nakime is as slow as a Lower Moon fodder?
2- So you said we should ignore all MHS showing because top-tiers are incapable of avoiding sound-speed opponents/attacks, and now you are saying that you concede that sound-speed opponents/attacks don't pose a threat to anyone above low-tier (almost all characters) but we should still ignore all MHS showings for some reason?
Can you quote the author?
With this kind of supreficial context-ignoring analysis, we can conclude that the author of Boruto doesn't believe that Genin are capable of dodging lightning because they can be tagged by a sound-speed attack. What is your personal opinion, do you seriously believe that a sound-speed opponent stands a chance at hitting the characters shown?