In my opinion (and I'm a hussar myself) the cuirrasier is to underpowerd since the patch but not only because of the patch. that's because it was useful to cut the ghostrange and stop the invinsible armour of the horse from changing hits into softspots.
So, in my opinion the patch was good.
The reason why currassiers currently can't catch up with hussars lies also not within the hussar. The hussar is well balanced as it is now.
My suggestion is, in conclusion of my former statement, that we first need to give the cuirassier a armour. Not that silver shining cloth thing, but a real armour. That means, the cuirassier need a cuirass which actually boost his armor stats.
Of course that means also that all cuirassier classes should have a cuirass, in order to keep the nations balanced.
Maybe, to keep that balanced, you should also make the movement speed on ground a bit slower for the cuirassiers because they wear a heavy piece of armour, or just make the rest cav on ground a bit faster... it's a fact that all of them are pretty slow compare to the normal inf.
So, let's come to the second point. The cuirassiers are designed for crushing inf, but I heard that it is nearly impossible since the patch. Because of this I suggest that they should also get a greater sword. Not that ghostranged thing from before, but a slightly bigger modell and and hitbox would be fine from my point of view.
Now some people might think that they have longer swords than the hussars and hussar regiments have no problem in crushing inf... But it really doesn't matter: Hussars are way more agile than cuirassiers and don't need long swords.
Thank you for hearing me out!
Greeting,
Cooper