The Panthers did free before school breakfast and after school babysitting and all sorts of actual community building like that. The PSL does protests and craft events and that's it. I guess providing consistent services is an order of magnitude more difficult than organizing marches but it just doesn't seem like the marches are getting us anywhere.
this is very illustrative: in Fred Hampton's time does anyone think it was very well known and publicised that the Panthers were doing that? i'd wager 90% of Panthers coverage was about brandishing guns, arrests, & clashes with police.