Can there be clarification on the use of describe/it instead of feature/scenario declarations for integration tests throughout the Rails 4 ToDo Application?

Throughout the recent Rails 4 Todo Application, can it be clarified the use of describe/it for the feature specs instead of feature/scenario?

For some reason it strikes me as odd given my awareness of feature/scenario declarations being associated and specifically for feature specs according to*Obie*/

According to the Ruby on Rails legend Obie, from one of his books, he is known for stating the following on the matter:

Instead of using the describe method to group together related examples of behavior, we use feature. To specify a scenario for a given feature, we use the scenario method with a description instead of it.

While this isn't the first time I've seen feature specs not use feature/scenario, I thought I'd ask to sort it out once and all before I accidentally face the wrath of a ROR BDD pundit who's pedantic about things like this.

Any throughs from fellow Rails 4 Treehouse members, Andrew Chalkley, Jason Seifer, or anyone familiar with BDD I'd greatly appreciate.