E.g. if I was reading an article and saw (Jmole et al 2020)--and was familiar with the field--I could easily continue on with an idea of what your paper contained.
If you cite using numbers (as is common in my field, engineering), then the current paper becomes a bit easier to read, but you lose the flow if you need to jump back and forth to the references (e.g. what is [0]? oh, it's jmole 2020, oh where was I in the methods?) and need to rebuild your mental model.