I don't remember there ever was a time were FP64 was considered a big deal for mobIle GPUs.
The article is trying to debunk a claim that was never popular to begin with.
"We also support Full Profile and 64-bit natively, in hardware. After years of evangelising the benefits of such an approach it is nice to see other players in the industry join down this avenue." https://community.arm.com/groups/arm-mali-graphics/blog/2013...
"Mali-T622 was specifically tailored for this job. Mali-T622 also supports OpenCL Full Profile and includes double-precision FP64 and full IEEE-754-2008 floating-point support which are essential features in order to enhance the user experience" https://community.arm.com/groups/arm-mali-graphics/blog/2013...
I could go on with the examples but I think there's no need to spam the thread with tens of blog articles that say FP64 and "native 64-bit" (whatever that means) are essential to the mobile experience.