Suppose it is just the nature of the beast with TPE.
People use it for short hop, commuting and travelling huge distances - with the first two just like the metro or Northern Rail.
Whereas the likes of EC and CrossStinky cover greater distances and apart from a few exceptions, don't stop at the smaller stations like TPE do.
RE: What's annoying you today? V2
'Illegitimis non carborundum'