I pretty much agree on all points except design flaws.
As an instruction set RISC-V is not significantly worse than ARM. RISC-V trade-offs performance to simplicity of implementation. I think this makes it good choice for embedded. IoT, security chips need to be cheap and simple. Price and size are more important than performance.
For example, stuff that lowRISC makes is never going to be high performance, but it can be very important for security point of view. https://www.lowrisc.org/our-work/
As an instruction set RISC-V is not significantly worse than ARM. RISC-V trade-offs performance to simplicity of implementation. I think this makes it good choice for embedded. IoT, security chips need to be cheap and simple. Price and size are more important than performance.
For example, stuff that lowRISC makes is never going to be high performance, but it can be very important for security point of view. https://www.lowrisc.org/our-work/