The feature that was NOT a part of the "renaissance" of Deaf life that occurred in 1964, after oralism was deemed a failure for Deaf education, is:
recognition of the importance of marriage between Deaf and non-Deaf spouses
While there may have been discussions around relationships between Deaf and hearing individuals, the primary focus of the "renaissance" was on the promotion of Deaf culture, sign language, and the overall validation of Deaf identity rather than specifically emphasizing marriage dynamics.