If by "don't have the tech yet" you mean "haven't completed mass production of the now proved-with-engineering-samples tech yet", then sure. But unless they're outright lying on this press release, they have the tech. Silicon in hand.
Lying or stretching the truth? "Tape-out" was supposedly completed in August-September,
http://www.coindesk.com/bitfury-completion-16nm-bitcoin-mining-asic/ but what, the chips were sitting in storage until now when they had the time to do a press release? I'm with the others, I'll believe it when I see it.
Tapeout is normally a step MONTHS in advance of producing actual sellable/manufacture with chips.
Sometimes, if the design wasn't done right, tape-out is just "oops, we designed these but the design don't WORK back to the drawing board to figure out how to FIX what's not working right", though that's not common with modern design tools. More commonly, the design works but doesn't meet the intended specs at which point you have to try to figure out how to fix the design to meet target specs, or you decide to live with the specs achieved if they're close enough to target.
Even in cases where the tape-out prototype chips meet the target specs, actually ramping up to production is still usually a "months to go" thing.
It's not hard to picture Bitfury having working chips NOW though, all of their announcements have been a few months ahead of the corresponding Innosilicon ones, and I'm expecting full production out of Innosilicon 1Q next year timeframe.