The definition of the Assumption in 1950 caused some dismay. As I recall, Protestants were angry because it wasn't in Scripture. The Archbishop of York, standing beneath his cathedral's 600 year old Assumption roof-boss, deplored it as an innovation. The position of the Orthodox was more nuanced: they believed it, of course, but were furious that the Pope had defined it.
Decades later, earnest Catholics were wont to lament it as the regrettable climax of a sad period of outdated and retrograde Mariology (they didn't know JPII was coming soon).
