> Finally the chips have to deliver in performance, to actually provide good mobile devices.

Or the other way around: the low-end market wants to adopt it due to lower licensing fees, so Android is incentivized to support RISC-V or risk losing that market to a competing platform. Especially in markets with a God App like Wechat something in-between feature phone and smartphone won't be a very hard sell. RISC-V adoption can grow upwards from there.