unable to disable rules

[uliw]

I have the following in my dir-locals.el

((nil .
  ((eglot-workspace-configuration
    . (:ltex-ls  (:language  "en-US"
	          :disabledRules ["MORFOLOGIK_RULE_EN_US"
				  "CONSECUTIVE_SPACES"]
                  :additionalRules (:motherTongue "de-DE")))))))

and eglot-show-workspace-configuration shows

{
  "ltex-ls": {
    "language": "en-US",
    "disabledRules": [
      "MORFOLOGIK_RULE_EN_US",
      "CONSECUTIVE_SPACES"
    ],
    "additionalRules": {
      "motherTongue": "de-DE"
    }
  }
}

, yet, when I check the buffer, the above rules are still active. What am I missing here?

[uliw]

update, the above should read

(:language "en-US" :disabledRules (:en-US ["MORFOLOGIK_RULE" "CONSECUTIVE_SPACES"]))))

which yields:

"ltex-ls":{"language":"en-US","disabledRules":{"en-US":["MORFOLOGIK_RULE","CONSECUTIVE_SPACES"]}}}}}