I’m personally fine with is, so long as it’s not overdone. Fiction is not real life; it may imitate life and there may be certain rules it has to exist within, but just as it may have a beginning, middle and end that real life is too messy to have, it can also ask of the reader or viewer to suspend disbelief in the name of narrative. So, it’ll just so happen that a ship called Enterprise will often be the only ship available to save the day; Jack Bauer or John McClane will be yet again the right/wrong man in the right/wrong place at the right/wrong time. And it may also be that, yes, because viewers want to see people in a shared universe interact, it’ll turn out that Luke Skywalker will save The Mandalorian and his friends from certain death, Seven of Nine will know Jean-Luc Picard, or Tony Stark will have been keeping an eye on a spider-powered kid from New York. I must admit also to liking how Batman v Superman made Gotham and Metropolis neighbouring cities, so as to bring the titular heroes closer together.