A star connection is the simplest way (some argue stupid way) of controlling the interference of ground loops.

There is is no argument against a random ground connection. But you have to know exactly for your critical signals what is the signal voltage loop and how it is shared which more noisy currents. A ground or a supply tree helps to made that work a simple calculation independend of current redistribution effects.

With a full chip extracted simulation (signals are Rc extracted while supply metal is extracted only by R) you can see the effects. But then a lengthly story of finding the sharing loop beginns and next often you have to relayout the hole supply nets.

So non-engineering is not substituted by more tooling.

One of the biggest supply loop sharer is the bond wire. So typical spending pins is expensive but the return is high.

For a quick starting change your thinking; imagine that each sensitive voltage is delivered as a loop, a voltage with a reference. Also differential signals have a ground reference because the common mode rejection is not infinite or depending on differential signal.

Start with the star and begin thinking in loops.