In no way is this post a comprehensive look at the situation, it's intentionally vague, not deeply fact checked and relies significantly on a google search I did on Sunday when I first saw the OP. Just some food for thought, I'm not a chemist, just an old meathead with a web browser and a huge cock, ymmv.
I too am a bit skeptical, not outright but their is just enough "off" here to get the wheels turning.
Starting with all the lies and fuckery that permeate society and government agencies or anybody else with an agenda or bias.
There could potentially be all kinds of bacteria to infect any product but 2/3 they named are oxygen dependent. It is my understanding that in general a vial of lyophilized peptide product contains no oxygen having been cleared of it by being put under vacuum or purged with an inert gas. IOW such bacteria couldn't survive well there if at all. On top of that using Bac Water should/could prevent proliferation if any is present.
Keeping in mind that there are plenty of bacteria that are not oxygen dependent and the if you get some of these in you or even in contact with your skin you can develop a severely serious problem moving forward some advanced hygiene practices are appropriate. Remember that I'm not an expert on that either it's just me, my incredible stamina and my computer so figure that shit out for yourself. Personally at the minimum I think that means swabbing any injectable products with alcohol upon receipt and keeping them "sterile" from then on. By no means am I taking this warning lightly but we shouldn't have ever been even before getting this, a reminder is fair and welcome.
Any attractive females who wish to discuss anything that catches their interest in this post are requested to send a DM with CURRENT pictures to arrange a possible in person meeting to explore the subject deeply.