TfL» multiple branding for all its various services running on rails is becoming progressively confusing and could benefit from being simplified or alternatively properly reclassified, even if 'historical purists' would protest.
Could you explain your belief in this progressive confusion? My observations are that TfL branding has become much less confusing in recent years. All the following have dedicated roundels and comprehensive online and offline information sources.
Tube
Bus
Overground
DLR▸ Tramlink
Crossrail
Coaches
That's not an exhaustive list, but the information about each one is comprehensive and accurate. Could you honestly say the same about public transport services outside Greater London?