No-schedule works fine if (and only if) service is sufficiently frequent, say every 5 minutes. The overwhelming majority of intra-city trips will have 3 transfers or less in a well designed bus network and when planning to catch a less frequent service, it's acceptable to bake in a 15 minute safety margin.
Is someone going to regularly take a trip that requires them to take 4 buses? I largely avoid trips that would require even a single bus transfer (admittedly, the Boston bus system is pretty terrible, meaning bus transfers are daunting when contemplating trips).
Yeah, 4 buses sounds terrible. I already don't like it when my trip to that one fancy office is bus-metro-tram instead of just bus/tram and metro. I would totally hate if buses in question were overcrowded, smelling hobos and not having a schedule.
Is this the usual European supremacy propaganda? Yes, of course it is.