Tumba Francesa and Franco-Haitiano (Franco-Haitian culture/music/dance) are related but not the same thing:
Tumba Francesa is Cuban, created when Haitian migrants (both free people of color and enslaved) brought those traditions to eastern Cuba in the late 18th and early 19th centuries.
So when people say Tumba Francesa, they usually mean the whole performance practice: drumming, singing, and dancing together, preserved by sociedades de tumba francesa in Santiago de Cuba and Guantánamo.
But if you’re classifying it strictly as “dance genres,” then yes — Tumba Francesa is recognized as a Cuban dance, though unlike salsa or son, it is more folkloric and ceremonial than social.