adding undertow using the cli requires a batch

Undertow appears to be the only subsystem now requiring a composite operation when it is added to the domain management model using management operations from a management client, e.g. cli.
The exact error is

[standalone@embedded /] /subsystem=undertow:add
{
"outcome" => "failed",
"failure-description" => "WFLYCTL0369: Required capabilities are not available:
org.wildfly.undertow.host.default-server.default-host; Possible registration points for this capability:
/subsystem=undertow/server=/host=
org.wildfly.undertow.server.default-server; Possible registration points for this capability:
/subsystem=undertow/server=*
org.wildfly.undertow.servlet-container.default; Possible registration points for this capability:
/subsystem=undertow/servlet-container=*",
"rolled-back" => true,
"response-headers" =>

Unknown macro: {"process-state" => "reload-required"}

}

The sequence that actually works is

batch
/subsystem=undertow:add
/subsystem=undertow/buffer-cache=default:add
/subsystem=undertow/configuration=filter:add
/subsystem=undertow/configuration=handler:add
/subsystem=undertow/server=default-server:add
/subsystem=undertow/server=default-server/host=default-host:add(alias=["localhost"])
/subsystem=undertow/server=default-server/http-listener=default:add(socket-binding="http",redirect-socket="https",enable-http2="true")
/subsystem=undertow/servlet-container=default:add
run-batch