Is there a way to capture the event price "label" with Webform CiviCRM?
I wonder if this is another example of this issue?
https://www.drupal.org/node/2840851

Short version - Webform CiviCRM does not provide line item detail to CiviCRM, which only guesses, sometimes wrongly, the details. That issue provides a patch which tries to make smarter guesses.