I’d kind of assume that Russia has already had access to Leopard 2s via one route or another – they’re widely-available, though as the article states, there might be something specific to this configuration that might be new.

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Well, it was bound to happen at some point.

Many features probably have been investigated by Russia already anyway, since Turkey wrecked a bunch of their Leos in Syria a couple of years ago. But of course, having an intact one gives a lot more options.

[…] the factory where the Leopard 2 resurfaced is far from the front line in Ukraine.

Well, smoking accidents can happen everywhere.

Also, funny to see in the article that hinterland made it into English as well.