One cool use would be communication in space - where it's feasible that both sides would have access to high-end compute units but have a very limited bandwidth between each other.
Wonder if its better than a single color channel hologram though
Bandwidth is not the limitation in space comms, latency is.
Underwater communications, on the other hand, could use this.
Though, I somewhat doubt even 22kbps is available generally.
Increasingly mobile networks are like this. There are all kinds of bandwidth issues, especially when customers are subject to metered pricing for data.