Disclaimer: I am not an investor in Walton.
Obviously the twitter competition fiasco was not a good look. However I am willing to give them the benefit of the doubt with regards to the Alibaba announcement. The situation here in China is quite sensitive around crypto, while I personally think the govt want companies like Walton to develop, they have a public position that is cryptocurrency is banned. I think Walton eventually realised it was best to keep a low-profile.
They probably felt terrible after the twitter fiasco and wanted to announce some good news.
Just my 2c, could be totally wrong.