User blog comment:Hawki/Nova Covert Ops, part 2 - Reflections/@comment-72.197.211.140-20160901010759

I'm not sure you can take the co-op Rak'shir mission to try to determine what Ji'Nara is thinking. Personally I felt Alarak learned more from the events of LotV than she did. After all, at the end of Night Terrors, while Alarak told Nova he had his doubts, it implied that he did suspect all along he might beat Ji'Nara. In a way, this would be somewhat like Artanis and Zeratul's mentality when they first encountered the UED at Braxis in BW. Artanis felt the terrans were feeble since the Protoss were the ones who killed the Overmind, but Zeratul pointed out that this was done with terran help and therefore shouldn't be underestimated. However, you're right in that I expect her to play a role if a future DLC is made involving the Tal'darim. We'd ultimately get to see how much Ji'Nara will learn over the course of the game.

For the whole attacking the Tal'darim, it's really hard to know just what the DoM are thinking. I feel they're falling into the same trap Mengsk did in the past: never bothering trying to understand them and just kill them outright, which only makes the situation even worse. Still, the idea of a Mengsk "loyalist" wouldn't really be too surprising. IMO, if that's actually the case, we'd finally have proof Mengsk wasn't completely arrogant as WoL and HotS portrayed him to be.

As for Reigel, I think he just doesn't have the confidence that one person has the ability to do so much. There's certainly grounds for that, since the Zerg's strength has always been in numbers, and therefore no matter how good you are, you'd get overwhelmed. I believe he does care for Dominion lives, but it's likely he feels that Nova is getting in way over her head on this, and will end in disaster or something.