AppSmith is aimed more on building UIs when Motor Admin has a single unified admin UI which can be configured and extended via simple configurations without visual builders.
Due to this approach it should be much easier to build admin panels using Motor Admin.
Can you run javascript like appsmith does in its widgets fields? From Dashboards can you create live polling / refreshing panels to show stats updating real time something like that?
The question is - do you actually need to run javascript to build an admin interface for your company?
With Motor Admin you don't need to - you can achieve almost everything AppSmith/Retool does with simpler configurations using the unified motor admin UI.
Due to this approach it should be much easier to build admin panels using Motor Admin.