Yeah I understand that, but the fact is that twice in a row he could have easily destroyed one rebel captain and two Jedis as well as one of the most efficient crew of the rebellion and he doesn’t for a “master plan” we - as the audience - have no clue about (not even a hint of some kind, just “they shall see… they… shall… see” stuff).
I’m guessing he traded the pleasure of killing a Rebel Captain, Kanan, Ezra and the rest of the Ghost Crew in order to kill literally every leader the Rebellion has and most of the muscle that backs them up which would include the Ghost Crew. Even if he had killed the Ghost Crew and a Rebel Captain The Rebellion would have survived. Kill the aforementioned, Leia, Cham Syndula, Bail Organa, Mon Mothma, etc. and that would be a lethal blow.
This is why I don’t like the way it’s written because there is no real contruction of the main season plot yet, things don’t add up so far, so it doesn’t work well (but it seems I’m the only one bothered by that).
In terms of a linear and straightforward way of story telling I admit this wouldn’t be the way to go about it but if they plan on having Thrawn lead the Rebels into a huge trap he will of course fill the audience in as to the intricacies of his plan. I think the most important part is that the plot makes sense in hindsight. Sure a movie could seem well written upon your first time seeing it but what good is it if it doesn’t hold up when reflection upon and after multiple viewings?