Terraform output does not outputs imported resources

Terraform Providers AWS
1

terraform v1.1.7
terraform-aws-provider v4.5.0

I have a simple KMS key resource:

output "key" {                                                                                                                                   
  value = aws_kms_key.key.id                                                                                                                     
}                                               
                                                                                                 
 resource "aws_kms_key" "key" {                                                                                                                  
   description             = "Test"                                                                                     
   is_enabled              = true                                                                                                                
   deletion_window_in_days = 7                                                                                                                                                                                                             
 }

And when I apply ititialized project it is giving me the output, but when I am importing it with terraform import I have the following behavior:

$ tf init

$ tf import aws_km_key.key 11bcda7c-6f9e-4edf-94d1-273eedt3be28

$tf plan
...
Changes to Outputs:                                                                                                                             
  + key    = "11bcda7c-6f9e-4edf-94d1-273eedt3be28"                                                                                              
    

$tf output

╷                                                                                                                                                
│ Warning: No outputs found                                                                                                                      
│                                                                                                                                                
│ The state file either has no outputs defined, or all the defined outputs are empty. Please define an output in your configuration with the     
│ `output` keyword and run `terraform refresh` for it to become available. If you are using interpolation, please verify the interpolated value  
│ is not empty. You can use the `terraform console` command to assist.

It gets even weirder - if you add to the config above s3 bucket config

resource "aws_s3_bucket" "test" {                                                                                                            
    bucket = "test-bucket"                                                                                                                     
  }                                                                                                                                            
                                                                                                                                               
  output "test_bucket" {                                                                                                                       
    value = aws_s3_bucket.test.bucket                                                                                                          
  }

with aws_s3_bucket.test.bucket output
You’ll get this output:

$ tf plan
...
Changes to Outputs:
  + test_bucket = "test-bucket"                                                                                                                  
                                                 
$ tf output                                                                                                                                      
key = "85bcda7c-6f9e-4edf-94d1-253edde3be28"

Is it expected behavior?