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"Leak of a natural or modified virus would be just as bad. Same if it's from consumption of rare animals sent from remote places or research on the samples from them."
I disagree.
I actually think "lab leak" is better and more optimistic news than a natural outgrowth or animal consumption, etc.
Lab leaks are a problem we can fix - probably without too much trouble. They don't represent a fundamental problem with accelerating globalization, urbanization and travel.
On the other hand, a natural origin or a human-animal crossing due to animal husbandry in or near urban areas ... or "bush meat" consumption ... those vectors could indicate that globalization, urbanization and travel have crossed a threshold where events such as this become likely and will recur regularly.
Given the relatively recent emergence of SARS and MERS, I have been fearful that our very connected, urbanized and globalized world (which I enjoy greatly) is at risk.
If it's a lab leak? The rhetoric may shift to blaming China and trying to punish them (especially in more conservative circles). New Cold War, more Iron Curtains, less freedom of travel.
If it's just globalization making things risky? Then maybe we can't let people fly from Wuhan to Bergamo for public health reasons. Less freedom of travel, for an entirely different reason.