Sadly I believe it is. My school recently moved off Blackboard for Canvas after at least ten years. While some teachers were relieved to move to a more modern system that supposedly offers them a better experience (it certainly offers students a better experience), many teachers rejected it as they did not want to learn a new system. My older instructors hardly ever post to Canvas besides updating grades saying they just don't want to learn it.

Luckily for whoever setup Canvas at our school I don't think they will get fired over it, but the resistance from staff makes me understand why other schools would feel hesitant to switch off Blackboard.