When the NDP Government of Bob Rae pushed to get subways under construction, they took care that the projects to be started were balanced evenly between the political players in and around Metro. For North York and Southern York Region, they put forward the Sheppard Subway and the York University extension. For Scarborough, they pushed an extension of the Scarborough RT. For York, Etobicoke and Peel, they pushed the Eglinton Subway. Thus they could show that rapid transit funds were being spent evenly between the different areas within Metro, and nobody went away unhappy. The fact that the truncated versions of the Sheppard and Eglinton Subway together provided less benefit than, say, a single complete Sheppard or Eglinton line, didn't enter into consideration.
The discussion turned out to be purely academic. Despite getting shovels into the ground on the Eglinton West subway, the project was cancelled soon after the Conservative government took power in June 1995. The cavern that was excavated for a future Allen Station was filled in, creating another unfinished subway station akin to the roughed-in Lower Queen.