Form does not process #type => value anymore

Fields with type value not being processed

Have a field with the type "value"

$process_input = empty($element['#disabled']) && ($element['#type'] !== 'value') && (($form_state['programmed'] && $form_state['programmed_bypass_access_check']) || ($form_state['process_input'] && (!isset($element['#access']) || $element['#access'])));

This line has changed in 7.88 due to the security update. This part is added: ($element['#type'] !== 'value')

In our login form, we have the following code added (hook_form_alter):

$form['authentication_provider'] = array(
  '#type' => 'value',
);

The field gets its #value later on in the code.
The field never gets process and the #value is empty because $process_input is false.

The following code works:

$form['authentication_provider'] = array(
  '#type' => 'hidden',
);

What is the reasoning for not wanting to process "value", but "hidden" is okay? Shouldn't value be a more secured choice of type than hidden?
#type => value is an internal value never shown to the user, how can this be a security risk, since you dont want to process it?

Or am I missing the bigger picture here?