I don't consider passing 3 trump as the dealer unless I have a euchre hand. There's other rare spots where we have a stopper hand that can trap a Next call. Vs the right kind of S1 player, a pass may be worth it in that latter case. In this hand we don't have a euchre hand or a stopper hand (I.E. we don't have all suits blocked), so passing is not an option to me. I think passing is a bad play here. That said, this is one of those spots where it would be nice to simulate.
While I feel strongly about this order, this would certainly be a good hand to do a kitchen table sample on. I'm sure part of the reason--in fact probably the only reason he passed--is he had 2 out of 3 suits blocked, I.E. he had black blocked. That will certainly lower the cost of passing in the long run. Enough to make passing better than calling with this marginal hand? I don't think so, but I don't really know. One of these days I'll probably test this spot, but for now I'm backed up with so many samples I wanna do it's overwhelming.