There’s no reason to think that NASA’s manned program took away resources from these probe missions. From the article, it seems like the problem is that the Ja

There’s no reason to think that NASA’s manned program took away resources from these probe missions. From the article, it seems like the problem is that the Janus probes were going to piggyback on another mission (Psyche) that got delayed for a year due to software issues, causing Janus to miss its window. Psyche seems to have been poorly managed and understaffed, but since the JPL primarily works on unmanned missions I don’t see how you could confidently blame manned programs for the management failure.