You read the title correctly. I suspect that Mnoomer and CruzCrafter's interview with an Inviz employee, which lasted six hours and completely flipped both of their opinions on the BringBoomBack movement, may actually have been none other than DaFuqBoom himself. (For clarification, there were two interviews: one with an Inviz partner who turned out to be Plebendos, Toilet Takeover's lead dev, and another with an actual employee of Inviz whose identity is unknown so far.)
But let's get into why I theorize this. Before this whole situation, Cruz and Mnoomer were both on the BringBoomBack movement's side, and I don't mean "they slightly favored it"; Mnoomer posted on Nov. 27, and I quote, "Iron Cameraman is one of the most based Skibidi youtubers out there right now", reposting one of Iron's latest hate rants against Inviz, while Cruz regularly reposted from AGENT077, another hardline Inviz hater on Twitter. These were people who aligned fully with the goals of the BringBoomBack movement.
That also debunks Ibio's "bribery" claim; if they'd been bribed, unless it were some ridiculous amount that Inviz wouldn't realistically be willing to offer (they only offered Zac US$2400, and he worked on the series directly), they'd out it immediately as "proof that Inviz is attempting to lie to the community", and BringBoomBack would have won the civil war... pretty much on the spot. So, no, they weren't paid, they were convinced. Now, what evidence could convince a hardcore BringBoomBack member to switch sides entirely better than Boom himself siding with Inviz? Pretty much nothing.
Now, Boom's already sided with Inviz publicly (namely, in the IGN article about the situation), but the BringBoomBack movement dismissed it as not actually originating from Boom. However, on Nov. 28 (the day before Mnoomer and Cruz publicly switched sides), Mnoomer asked the community an interesting question about the IGN article:
"If Boom went on discord/made a tweet on his own account, and shared the exact same sentiment here but not sanitized by INVIZ, would you be upset with him or would you support the change?" Keep in mind that this was RIGHT before they switched sides. It's possible that the call was earlier but Mnoomer and Cruz discussed with each other whether or not to say anything between these two points in time.
But that's not all. It's been confirmed that there is no NDA on the information (Mnoomer), but also that there's "good reasons" why they can't share this info. Also of note is that it was all said on a call, so they'd know for certain that it was Boom if it was. If they could affirm Boom was taking Inviz's side, there wouldn't be an NDA, but there would be a very good reason not to reveal things, and it would be out of respect for Boom's decision to remain secret.
There's some more evidence I recall seeing but I haven't been able to find and thus verify it, so that's all for now. And remember, this IS just a theory; I don't think there's enough evidence to confirm it, but it could very easily be true and would make sense in the context of the situation.