That's literally what his Introduction did
U just started reading One Piece & what did you learn?
Grand Line is Brutal
You need a Strong Ship
You can't Roam between Seas Freely
Almost Everyone Fail or Abandon their Impossible Dreams
You need Powerful & Reliable Crew
Weather is Unforgivable
Even Fleets might struggle to Survive
This World is all about the Fun & Excitement of chasing your Goal
Shanks is Legendary Pirate that MC looks up to (More than Anyone Else, except Roger)
Then this Guy is Introduced, Travels between Oceans cuz his Nap was Interrupted, He is Worse than Grand Line itself, the Disastrous Weather actually Saves others from Him, Travels in a Small Boat that is a Coffin (Resting Place, as if He indirectly saying He is chilling), already Achieved his Goal, Accepted Worldwide to be Greatest Swordsman, Sanji calls him Strongest Man, He is One of Ten MC's Endgame Goals, He is Extremely Bored, Trash Talk the MC's Inspirational Figure (Shanks) & says He isn't Interested in Fighting Him (Oda even drew his Non-Commanders Afraid to see Mihawk, even though They are under Red-Hair Flag & in his Presence), He have Best Weapon & i can go on & on
And to make all of this obvious, what did Oda Name his Introduction Chapter? Storm
What do you think Storm represents? It represents "End of The Line", you can't face a Storm, you only Avoid it
Even Law when He wants to Threaten CDs, what did He say? He said "D. will bring another Storm"
When Luffy faced his First Major Villain (Crocodile), how did He defeat him? With Technique Named "Gomu Gomu No Storm"
And there are Dozen other Examples
Mihawk's Introduction wasn't Created to Hype his Sword Skills, He literally showcased Nothing
It was to tell us that this Guy is like a Storm in World of One Piece, He doesn't chase Dreams, He "Ends" them
And when Final Arc arrives, you will realize that there are "Ten Storms" that must be Removed
They represent Obstacles to each of SHs Ten Dreams
For example, Robin's Storm is World Government itself
Chopper's Storm is gonna be some World Ending Sickness
Nami's Storm is gonna be some Real Stormy Weather
Franky's Storm gonna be some Target He must Overcome with his Ship ... etc
Luffy & Zoro's Storms are Mihawk & Final Villain, They aren't an Organization or an Event or a Kingdom or a Disease ... etc
Just Two Fighters
If you go to Chapter when Luffy recruited Zoro, Narrator said that They don't know They just made a Huge Mistake
People thought that Narrator was talking about their Poor Navigational Skills, but it's not the case, because Zoro was already Traveling & got Lost way before He met Luffy, and same for Luffy who was already shown struggling before He met Koby
What do you think is this Huge Mistake? D. Will Bring Another Storm
Meaning Luffy is gonna Cause Final Villain to Show-Up
And Zoro already Attracted Attention of his own Storm that Mihawk (As i said, Chapter Title reveals it all)
So Luffy/Zoro's Huge Mistake is that forming SH Crew will lead to an Event where Final Villain + Mihawk are gonna be Forced into Action
If you Remove these Two from Story, then the World wouldn't witness True Power of Final Villain & Mihawk