Do you even play hazama remotely well?(Well ok, I guess I can't say I play him too well either. )
There are a ton of situations where I nip them at the end of my hitbox and need that dash.
Most of his chain movements are gimmicks where you need something to throw off your opponent. Things like throwing a chain on oki and using C to crossup but you need to be EXTREMELY careful when doing such. I've seen Buppa do it OCCASIONALLY, because its a GIMMICK. Gimmicks aren't always bad, you just need to be very careful because if they are aware of said gimmick it can be PUNISHED, HARD.
His chain zoning is pretty safe, but it's also easy for your opponent to play conservatively and block. Better opponents are going to be working their way in and you just have to milk it for as much meter as you can. Using a blocked chain to mixup for an attack gets predictable and punishable EXTREMELY QUICKLY. Characters like bang can drive their way in off of them, fakeout chains into a 2nd chain will hit some bangs for a little bit until they stop trying to be stylish and just throw a D nail. OH LOOK I'M IN.
He isn't extremely difficult but you need matchup knowledge to play him, because a large amount of meter gain in higher level play is from IB's, to IB you need to know pressure strings and timings, it's really hard to practice and it's almost something you kind of feel out.