I frequently use Text Box Form Fields populated through FDF imports. In some cases, angled text is required, but Text Box Form Fields cannot currently be rotated to arbitrary angles. The only workaround is to copy the text from each form field into a standard text box and rotate it, which eliminates the ability to populate the text through FDF imports.
Allowing Text Box Form Fields to be rotated like standard text boxes would preserve automated workflows while avoiding manual rework.