Well, they are advertised as such.
Moreover, the important ability with respect to these languages is that of reading texts, with or without the help of translations. The online introductions in Early Indo-European Online are designed to provide such ability.
Latin Online  is designed to teach you to read Latin, or to improve your reading knowledge. After completing the course, you should be able to read any Latin texts.
They do however, explicitly state that completion of the course would allow you to read the language only for Latin, Classical Greek and Old Church Slavonic, and IMO, the lessons for the 3 languages are indeed easier to go through than the Tocharian course at least, which seems more linguistics-oriented. But perhaps this may be due to the decipherment of Tocharian depending a great deal on PIE linguistics?