Sibling relationships are always hard to pull off. In this case I think Discovery succeeded, though while realistic, it doesn’t necessarily ring true to what we know about the characters.
This episode had all the elements of the new series at its best. Character development! Past as prologue! Pike being catty! Tilly getting things DONE! The most adorable version of Spock this galaxy has ever seen!
For all their attempts the show has yet to convince me it can handle complex philosophical arguments. I love the characters, but my lords, after the coexist episode we are now treated to the writers’ attempt at exploring the nature of oppression.