If it is the end of bitcoin, that's sad for Isabella since she's invested so much time in covering it.
What's worse is that her perspective seems to blatantly ignore the recent good news with Paypal/Braintree lending Bitcoin long term legitimacy, not to mention that the technology itself is sound. NFLX has had similar drops from its past peaks. When NFLX dropped 76%+ from January 2004 to March 2005, and 80%+ from July 2011 to Sept 2012 was that considered by these pundits to be "the end" of Netflix? Nope.
Unfortunately, I started looking at Kaminska's twitter posts (a feed appears on the FT AV website, so kind of unavoidable). It's even worse than her 50+ FT AV articles. She's totally anti-Bitcoin, through and through (which is fine, she's not the first and people are entitled to their opinions). She pulled out the old merchant-adoption-is-bad-for-Bitcoin-price argument in response to the PayPal news. She's infuriating not so much because of her views on Bitcoin, though she clearly struggles with objectivity, but more because of her incredibly pompous, self-righteous attitude. Anyone who points out an error or gap in her understanding is quickly dismissed as a troll or "Bitcoin cultist" who doesn't understand economics. Of course her entire life's work and career has made her this way, but still...