Can't find much to disagree with? I don't know.
Surely the indignation is a bit rich, from a man who objected to Britain's support of UN resolution 2334 condemning Israeli settlements in occupied Palestine.
He said "the conflict doesn't matter".
To attribute Putin/Russia's evilness to Russian objection to NATO enlargement around the Russian border generally, and Ukraine joining NATO in particular, is frankly infantile. Didn't WW3 nearly happen due to the Cuban missile crisis, when the shoe was on the other foot?
In case anybody says NATO is only a mutual defensive arrangement, do look up what NATO did in purely internal conflicts that were Libya and Kosovo - the latter a particularly painful lesson for Russia - NATO's actions were never sanctioned by the UN due to objection by Russia.
For those interested,
this might help to explain why Russia feels cheated, and why all this could have been avoided, if not for the hubris of the winners of the Cold War.
Tugendhat's crude indignation shows him to be just a lightweight ex journalist / PR consultant / TA officer who sees the world in black and white, and would say anything to burnish his political prospects. But then what do we expect?