Not true, in the three covid waves there was significant excess mortality each time, the reason why it "overall" leveled out was because the influenca season was completely nonexistent last winter because of the lockdown (
link). Countries with less strict lockdowns (Germany wasn't even that strict) did fare worse (
link).
Corona is not "pretty much non existant" right now, the overall numbers are low but they're on the rise and we've seen before how quickly it can accelerate. With only 2/3rds vaccinated there is still a need to keep exponential growth in check even if majority of risk groups are now better protected than a year ago. That doesn't mean that cancelling outdoor events is a must (I think its rubbish).
There has been an undeniable impact on plenty of people's mental health but it's a bit cheap go-to argument for anti-lockdown rhetoric. "Ahh but mental health impact is far bigger than a couple of grannys dying". I agree that it can't be easily quantified but e.g. common arguments of apparent "higher suicide rates" can and have actually been proven not to be accurate. And it's not even a given that mental health situation would be better with no covid containing measures. More people dying, more overloaded hospitals? Great baseline for human's mental well being.
World Hunger is an even worse whataboutism, of course it has gotten worse in a global crisis but what exactly is the better alternative? Let Covid rip through the world and that'll make World Hunger go away?
That being said, I still disagree with cancelling the Cyclassics given the extremly low outdoor transmission and the comparable alternatives that are allowed. 50 people can be indoors in the same room without restrictions but a thinly outstretched crowd on the side of the streets with masks is a risk? Nonsense.