The "Sputnik V team" is the not the Gamelaya research institue, again the article you cited says they are affiliated with the Russian sovereign wealth fund.
"Powered by" is weasel word 101. When you see a website where it's written "Powered by NodeJS" does that mean the website literally is from NodeJS?
I'm not sure what you're even trying to say here. Whoever wrote that response is quite clearly authorized speak on behalf of Gamaleya and the Sputnik V vaccine team, and while I'm sure there are plenty of conscientious scientists at Gamaleya, as Derek says this really is the worst possible public response.
Tackle the problem seriously, sort out the manufacturing process, and the world will have one more weapon in the fight against COVID. But if the response to every piece of bad news is "hurr hurr political fake news", then nobody will trust Sputnik-V, and quite rightly so.
It's the post-Soviet Russian way of doing things, comrade. First claim fake news, then quietly fix the vaccine and deny accountability. Some vaccine scientists are due to accidentally fall off their apratment windows while doing Easter cleaning, with a helping hand from the FSB.
"Powered by" is weasel word 101. When you see a website where it's written "Powered by NodeJS" does that mean the website literally is from NodeJS?