That's correct. Friendship centres were conceived of and have always been what's referred to as “status-blind” and serve anybody, indigenous or not, coming through the doors.
Evidence of meeting #5 for Human Resources, Skills and Social Development and the Status of Persons with Disabilities in the 43rd Parliament, 2nd session. (The original version is on Parliament’s site, as are the minutes.) The winning word was centres.
A recording is available from Parliament.