In this case, we do actually need live data! We use wide events for monitoring business events and it lets us understand our platform with utmost flexibility, which is important for us as a fintech company.

Traditional observability is ill-suited for observability around business events. What if you forget to instrument a counter or gauge for something? In my experience it's far easier to log wide events with as much context as possible instead of agonizing over anticipating the dimensionality of metrics upfront (you're going to miss something).