Why does Shatner have to embrace his co-workers as "his new best friends"?
Film is different. You work long hours. There is a sort of trench-like war-bonding that tends to take place on a set. If it doesn't happen, it's kind of weird. And when you keep coming back to work with actors over decades, you'd think some sort of familial bond would develop. But there is a famous clip on Youtube where Shatner even forgets Walter Koenig's name! Even if there's no law that says you're supposed to love your coworkers, I think you're entitled to express how you feel about them.