I think folding KTs here is a bit too tight, I would rather 3B than flat due to the ability to fold out dominating offsuit Kx and also some Axs that dominates your suit, also rake and the fact that you're only going to face 4B from very strong hands so that you can comfortably fold but I think call is still making money assuming a good understanding of post flop to go with this decision. If the advice is to tighten up to make life easier due to hero not being familiar enough with the post flop spots that they're likely to encounter then I think that's reasonable to suggest but is different to saying that there's no way to make money with this hand.

Also just in answer to the initial post poker doesn't revolve entirely around bad outcome avoidance, if you 3B, get 4B and have to fold then that sucks but also you were almost certainly dominated it's not the end of the world, most of the time this doesn't happen and you end up in a favourable situation where you either take down the pot pre or get to play post vs a capped player who is likely to play very face up.

Thanks. Interesting points here. I felt folding was too tight, but you are right that I am going to be playing a pretty dominated range even in position