Yii2 ActiveForm Ajax Validation for Single Field

Is it normal for active form to send the whole form data for ajax validation when ajax validation is enabled only for one field of the form?

I want to validate only certain field of active form and it triggers the validation only for that certain field for which i have enabled the ajax validation, but the problem is it sends the whole form data to validate with that request, not just that certain field data.

I wasn’t sure if its the intended behaviour, if it is then what’s the point having the option to enable ajax validation for single field if its going to validate the whole form with ajax anyway.

See docs Here and Here for more info on what i’m talking about.