Please elaborate on what’s wrong with the article. Proclaiming “biased bias” and quoting mystical nameless “mainstream scholars” ain’t scientific.

I myself am not an expert on the subject, but other experts don't seem to accept his work.

And also explain who those Russian vacationers are who managed to singlehandedly declare two independent republics and a separatist movement.

How about you study what happened yourself? Read e.g. Hybrid Warriors which is not a bad account on the events, even though it's also Putin apologetic.