[From Jason's point of view, so much happened in the span of what? Two minutes maybe? By the time Jason realized Tim wanted to tase himself, Cass already did it. It was a surprise but he gets why she did it now. When it comes to checking for the Joker's presence, it's better to be very thorough.

As frustrating as tonight has been with his safehouse already compromised by four uninvited people, it's been a very enlightening experience. It was one thing to know that each of his siblings and one non-family Bat protégé were trained by Bruce. It's another to see them in action during noncombative vigilante situations. It's been interesting to know how much they were all on the same page. Frankly, he would've tased Tim as well if no one else was going to do it.

And then of course, a Super is upset about the Bats' approach. Jason doesn't flinch from Kon's anger. He's not sorry for being a part of this]

He'll be fine within a couple of hours.