Enough.
Either you don't play as much as you'd like you claim or you don't really look at the lenght of weapons when you fight.
Ghostreach while generally not big is still there, as a footwork lover, I find myself dancing just outside of reach of weapon's lenght, and by dancing just outside I literally mean about 1-2 cm from the tip. It usually leads to my death because I've been swung in the face by a gust of air displaced from the weapon's swing. Ghost reach is generally not huge outside of massive lag but that's to be expected, I just wish Devs would actually confirm that it's there.
Differentiating tipslashes and ghostreach might also be hard, some weapons have tips that are very hard to see such as the awlpike, they make for some pretty awesome ghostreach moments since the hitboxes are just long sticks that extends to the VERY end so even if you get stabbed by what is seemingly nothing, it's actually the ridiculously long tip of the awlpike that stabbed you 1mm deep for full damage. That's probably what happens the most, happens to me alot, I find it bullshit on curved weapons or anything with excessive tips like the morning star but we have to deal with it I guess.
Now there's also straight out ghost reach, they don't happen nearly as much as people let on or maybe they just can't differentiate properly from the tipslashes but they still happen, I've had swings that I was much further away than usual, something like 20cm and I would still drop dead to unknown forces.
About nonsense hit detection, I've had some weird lag ever since the new patch for one day(Only seem to have happened for one day in duel, the entire day was filled with hit detection mishaps and it fixed itself the next day though it still happens slightly but at a much lowered rate) people would start spinning because everyone feels the need to spin, slower spin speed or not and they were literally hitting me for full damage while facing their backs to me. No, it wasn't the backswing unless some freak 'roid ghostreach was going on in these backswings but I could get hit as much as 3 times in a row for full damage when they were facing their backs toward me, if shit like that can happen, I'm pretty sure more minor things like ghostreach can also happen.