Hyperscalers in the cloud and low latency finance will drive the innovation to make HW offload a thing sooner. For the rest of us normal folk, we can likely live with CPU managed packets until that happens, and then take advantage of the optimization benefits when they make it to us.

I think it's fair to call this out, but my initial read, and the reason why I'm responding, is because it seems like you're saying that it's non-viable.