I don't really think the pictures tell us anything we didn't already know. It's pretty clear the Astros had a sign relaying operation that likely included the use of video technology. Fiers testimony and the banging videos prove that like 95% of the way. The pictures maybe make it 96%. I dunno.
Regardless, I don't think they matter much because the relevant issue isn't whether or not the Astros employed technological sign stealing, it's more about the overarching context and how MLB can reasonably act within that context.
MLB clearly knew what they Astros were up to after the 2018 season. They put new/clarifying rules into place. They had people monitoring the Astros dugout for banging sounds. They had every opportunity to punish the Astros at that time, but they didn't.
Why not? It's pretty clear to me why they didn't. They wanted to prevent future rule abuses and sweep the past abuses under the rug. But how do they explain that to fans today who are pissed? I still think this issue will be trickier for MLB to navigate than it is for the Astros.