i do think MPK and KD could benefit from rerouting at least the line 3 through the core of Zawisz贸w, because that would mean Osiedle M艂odych would get access to (at least some) trains, since 艢widnica Zawisz贸w is way closer to that district than 艢widnica Miasto, even though 艢widnica Miasto has a way better public transport integration
it might not look like that from the map, but since line 3 and 6, core bus lines alternating every 15 minutes pretty much go from main train station to Zawisz贸w first, and then Osiedle M艂odych, that would mean not having to waste a lot of time getting through the city centre, and the Zawisz贸w deviation
zawisz贸w road network is very tricky for routing buses so i kinda see why they just Not Do It through the core, but still it's quite a low hanging fruit imo