1. How can a team make 40 points in the 4th quarter, while having trouble to get over 20 points in the other three quarters? unrealistic in my opinion, even if they change the tactics completely.
Looking at your team defense rating, you likely got lucky that you didn't receive 40 pts. each quarter. The other reason probably is having a better overall stamina than you.
2. What factor/skill do technical fouls depend on? As a player in a team with a 2 point lead in the 4th quarter to commit a technical foul you must either be out of your mind, or really wishing to be traded as soon as possible.
Technical fouls are assessed at every collision when there is a chance for an injury. Not ever technical foul guarantees an injury, but every injury comes after a foul. Therefore, technical fouls probably come after especially poor defensive play, and as such would come from poor defense skills and/or high value of the hidden 'physicality' rating. This, of course, is mostly speculation.
3. What factor/skill does traveling depend on? here too, to make such a mistake in the 4th quarter is really weak, but also realistic. I just don't understand which factor it relies on.
Likely poor driving skills.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."