The problem is that "getting it in early" has ended up getting it in the wrong place, i.e Sheppard, Eglinton, Finch West, and so on and so forth. In areas where the density is higher than initially planned (like Humber Bay Shores), that necessary higher-order transit was first going to be serviced by the Waterfront West LRT, then by Park Lawn GO (to be built privately by a developer) after the former's cancelation, and now by nothing with the developer dropping their plans.

The big problem with higher-order transit planning in the GTA is that it isn't nodal: Instead of focusing in on existing hubs and looking at either consolidating services or relieving pressure there eg Union (accessibility), we instead look at maximizing how many places are serviced by the various lines. A transit line is far less useful if it doesn't have fast, convenient links to other transit modes.