You may be overthinking this a bit. I sympathise, but that's what "flooding the zone with shit" is intended to do to people, so that they have no idea what to make of anything and give up trying to follow it all. The Kremlin does this.
I think it went like this. Consider: this bunch of goons has the mindset that all the systems and procedures they have inherited are the cumbersome, bureaucratic and needlessly costly products of a bloated civil service. Consequently, seeing themselves as breath-of-fresh-air iconoclasts, I suspect they thought this is all balls, there are perfectly good commercial encrypted messaging services, so why bother with rules that say we have to use this state-developed[boo hiss] secret squirrel system, we'll just use Signal from now on. And so they did........ BOOM!! 😁
I was very much amused by Waltz preposterously suggesting that Goldberg had deliberately got his phone number into Waltz's address book (how?) and saying he would have to "consult Elon" about how to stop this happening again. What cock! The solution is, er.............to use the special secure system that already exists and whose use is, er, in fact mandated by the current regulations they saw fit to ignore.
Waltz's performance put me in mind of particularly unconvincing schoolboy with the feeblest of "dog ate my homework" excuses.
Mind you, I think Goldberg might want to make sure his tax affairs are in good shape and that he doesn't get so much as a speeding fine for the next few months. These people now control everything and are extremely vindictive, with the object of scaring everyone into not probing what they are up to.