I think there is a major problem, but I also think it’s being exaggerated. Much of the exaggeration comes from people who have already become frustrated and disenfranchised by the high cost of Toyota BOF products now. The people who were opposed to the loss of the V8 are also now feeling vindicated as well (and perhaps rightfully so).
I’ve always been cautiously optimistic about the V35, but we are now four years into production (more if you include the LS), and the kinks should be worked out by now. I wouldn’t be surprised if the V35 goes down as being the worse Toyota engine since the 12 valve 3.0 V6 in the late ‘80s/early ‘90s. Hopefully things will turn around.