It even mentions that CATL is at roughly the same stage. So while good news its still going to take some time to get these into production cars and to get the costs down.
They have each been testing battery samples for years and making announcements about roughly where they think they'll be going to production. It's not like battery cells suddenly pop into existence fully formed and ready to go. There's a lot of work and problem solving that needs to happen.
2027 isn't when mass production starts but when early, low volume production begins. It takes time, and many billions, to build large scale factories. They'll want to see low scale production work first. Early batteries are likely to be scarce and expensive for a while.
People have unrealistic expectations about solid state batteries in general. Currently the best selling batteries aren't those with the highest density but those with the lowest cost of materials and production. That's why LFP is so popular currently. Solid state won't change that. LFP will be widely used for years to come. A logical place for relatively expensive early solid state batteries to be used would be in aviation related use cases and maybe some high-end vehicles or sports cars. Forget about these showing up in budget cars anytime soon.
I'm hopeful that in the next few years we will see some serious range improvements across the board with EVs. Then mass adoption really takes off.