Yes, but it’s a little unusual that one orca was hunting alone, and the shark was a large juvenile. The scientists think that the ecological mess that has resulted in the killer whales pushing out all but the boldest teenager great white sharks could mean that the sharks are going somewhere else, possibly where humans fish or swim or where the local wildlife is not ready for the sharks.
First, war is always a tragedy. Always. It is to be avoided until the reasonably plausible alternative is worse for human suffering. People who ignore this are asses (not saying you are one of them).
Second, as long as it stays conventional and China stays on the sidelines, then yes of course NATO destroys the Russian military, or at least keeps it hemmed into existing Russian territory. That’s been true for 30 years.
Third, those are VERY big ‘ifs’.