token {contribution.financial_type} works but is not listed as available

Steps to reproduce:

1. Navigate to Contributions > Find Contributions and submit a search with any criteria that will return results.
2. Select any of the search results, and from the "Actions" select list, select "Thank-you letters - print or email"; this will open the "Print/Merge Document" form.
3. In the "Print/Merge Document" form, under "Document Body", open the select list labeled "</> Tokens" and look for a token for Financial Type. Observe that none is listed.
4. In the body field, manually enter the text {contribution.financial_type}.
5. Click "Make thank-you letters" to generate the thank-you letters as a PDF.
6. Open the PDF thank-you letter document and observe that the token {contribution.financial_type} is replaced with the correct financial type for the contribution.

Suggested improvement:
Add the token "Financial Type" ({contribution.financial_type}) to the list of available tokens for contributions.

Concerns:
Was this token intentionally omitted from the list for a specific reason?