It depends whom you ask, though.
I would say that in this instance cryptocurrency is actually money because it serves as medium to transmit value and without a third party.
OK. Does it mean that we can use anything as money, as long as that item transfers value? Let's say I agree to drive my neighbor to the mechanic and back and he pays me with fuel. We agree that he gives me dishwasher tablets, does that count as money? The tablets transferred value from him to me without a third party.
If me and my friend both have accounts in an RPG game like WoW or EVE and we use game credits to pay each other, does that count as money? If I pay him for weed by sending him credits in game, did I, according to the law, buy illegal goods, or did I barter for it?
Both bitcoin and game currencies aren't officially recognized anywhere in the world as a legal form of payment, apart from El Salvador and Central African Republic, if I'm not wrong.
The fact a third party is not within the equation is the reason why the regulation on casinos and exchanges is getting tighter each day that comes and goes. With traditional FIAT casinos (specially those which only operate online) there is a higher risk the authorities would reach and freeze the money the criminals intend to clean up. There comes the preference of criminals for cash, noone can tell either a bill is "clean" or not just by looking at it.
Even if we see Bitcoin and altcoins, not as money, but casino chips; they are still assets and hence can be laundered.
So, all assets can be laundered... Are you aware that real estate is an asset? How can you launder a building?