And no, there are not many options left. International wire is quite expensive, SEPA takes several weeks to finish. So many just buy BTC as soon as it lowers a bit. Thats what you call "stability".
Just look at the slowness of things. And, again, they are not even attacking BTC (maybe with words) but they are just making sure regulations are being followed. And the Dwolla Gox thing is really really gray. I mean MtGox spent, what? 25 million getting things in order in the last year for this? This screams of either being overblown or too little too late.
Anything is still possible, but unless the internet gets shut down or the like, we probably continue for months if not years before we see what can amount to anything huge. And by that time we will probably be too well established imo.
Perhaps "they" aren't threatened by BTC in itself, but only by its interaction with fiat-based economy? In other words, if BTC was only traded for goods, its threat would be minimal. At this point, BTC is used primarily as a vehicle for currency speculation, and as such not only devalues fiat, but highlights its intrinsic flaws.
If that's the case, attacking businesses & institutions engaged in exchange is both simple & logical.