Denial that the situation was traumatising also for those who didn't fall seriously ill and didn't lose loved ones doesn't help either. Just think about it:
You live a normal life. The next day, you are suddenly stripped off most of the things which you have been taking for granted ever since. Freedom of movement. Freedom of meeting whoever you like. Freedom of exercising most of the activities you enjoy. You hardly have any clue what's going to happen tomorrow. You can't plan anything - and whatever you have already planned has been scrapped. You are constantly swamped with incoherent and scary info. Your job is on the line. Many around you are scared to death, falling into panic attacks, insomnia and whatnot. The list goes on and on.
It's only human that after something like that many people have lasting trauma which, sadly, will take some time to heal. They are not "snowflakes", they are not weak. The vast majority of them will recover completely within months and will learn something useful from the experience, coming out of it as even better people. But, for sure, the mental health impact of everything that happened shall not be disregarded. Remember the WHO definition of health? "A state of complete physical, mental and social well-being, not limited to a lack of illness or infirmity." Hence, how healthy are people whose mental and social well-being are at the bottom of the waste bin? And there's nothing shameful about that.