I actually really like Kirk being intricately tied to the Enterprise in intimate ways in the years before getting command of it. Trek has never really dealt with how a ship passes hands to a new captain, and I enjoy that Kirk is being given the chance to form relationships with the ship and members of the crew well before anyone even considers that he might one day be its captain. Never mind that Pike is uniquely well aware that his own time is limited and he wants to make sure that his ship is in good hands, so vetting Kirk in this way by encouraging this kid of collaboration is also a reflection of his own strengths.
And just in a broader sense it’s always neat to see Federation ships collaborating. I’d like to see more of it, honestly. Sure, starship crews are often isolated from one another, but they’re also designed and trained to work together on missions whenever possible, and I like the excuse to explore that dynamic with Kirk.