Yep, tankies will probably disagree when someone claims the country that invaded the USSR was a 'friend' due to a diplomatic treaty of non-aggression. The USSR had already tried making pacts with the UK and France first, which were rejected, as referenced in the second paragraph in the link you gave:

The treaty was the culmination of negotiations around the 1938–1939 deal discussions, after tripartite discussions with the Soviet Union, the United Kingdom and France had broken down

As pointed out in the Munich Conference section:

The Soviet leadership believed that the West wanted to encourage German aggression in the East and to stay neutral in a war initiated by Germany in the hope that Germany and the Soviet Union would wear each other out and put an end to both regimes.

Obviously the USSR didn't want to be friends with the most anti-communist regime in the continent who invented terms like 'Judeo-Bolshevik'. So tankies will consider it either ignorant or bad faith to bring up the Ribbentrop Pact to pretend it was anything more than realpolitik compromise resulting from the Western powers wanting the two countries to destroy each other. The alternative was being invaded sooner, which we know in hindsight was a real threat.