Because none of it is "news" to any one in biotech, and none of it has any content to anyone in finance and equities.
Bottom line is that any pro knows that BTX has said nothing since 2008 that will convert to $1k over COG and G&A within 5 years. And as of this week, it's still doing that. Since even "Four more years" is going to double the o/s, or doors close. it can be ignored or shorted at will. It's an MM'c chew toy. No more; no less.
BTX doesn't respond to news because its price is not related to fundamentals.
Holding BTX is basically gambling. The stock is probably worthless, but there is a small probability that all the hype might actually come to fruition in the next few years, and that if it does, the stock will go up a lot.
There are newsletters specializing in biotech that peddle the hype, you don't need to buy any of them to know what's going on, the stockgumshoe website seems to be able to glean who's hyping what. Patrick Cox has apparently been hyping BTX for several years, ever since its price was under $3. Oh, wait .....