That is a very good point. Most of the Sovrin energy is being expended in the foundation layer of the ledger and consensus mechanisms. A proportion is also being expended in the middle layer of agents and inter-agent protocols. There's little effort from the core team on the top UI layer, which is probably best left to UI experts.
Personally I'm really keen to see the first demo apps which use Sovrin. Getting a simple and effective UI is vital to success - people won't want to know about consensus algorithms, DIDs and DDOs. They will just want something simple that works and keeps them secure. And that should be applicable for all users however "abled" they are.
If some UI experts could jump into this conversation that would be great!