The console is not the way Amazon prefers to communicate with AWS customers.
Any customer with a level of respectable scale will use the API for everything.
So they don’t really care about polishing the console.
Amazon.com, on the other hand is obviously different.
To your point about respectable customers using the API, according to Amazon the majority of customers use the web interface for most things. I forget the number mentioned at the AWS Summit, but it was significant.
Even I work full time on AWS and do most provisioning via API actions, but still end up in the console tracking down various things since the API is very cumbersome.