It's another 250 metres to the mainland edge of the nearest bridge to Ontario Place. It seems rather misleading if the Ontario Line ends up being at (under?) the existing Lakeshore West station, ...with about an extra half-kilometre walk to Ontario Place.
Who knows? It's all but certain it won't be directly underneath either "stations" indicated -- probably somewhere in between, in order to politically "claim transit connection" that leads to both dots (Exhibition Station dot and Ontario Line station dot). It might be closer to the Ontario Line station dot, or might be closer to the Exhibition Station dot.
Also, to protect for further westward extension, the Ontario Line probably will at least be slightly north of that station dot. 25 meter? 50 meter? Even that makes a difference in making a westward extension more viable/cheaper, since it will have to curve back up anyway as the line will have painted itself into a corner by having such a terminus that far south. More realistically, it could even be at least 100 meters further north of that Ontario dot, fluffed by a 50 meter tunnel, a 15 meter diagonal escalator/stairs, and a sunny treed covered 35 meter fancy walk, to padd out a 100-meter-to-dot, and then call it a "connection". Who knows how they'll politically treat it? (Note: The maze to get to Dundas subway station is sometimes more than 100 meters even if it's only 10 meters underneath you -- even 100-meter simple horizontal walk is a shorter walk to Dundas subway station south-track from Yonge-Dundas square (Even though the subway station entrance is right there -- it is quite the maze just to jump the hoops to get to the south-direction track -- over 100 meters of walking required!). Now, we don't like long walks to make a transit connection or simply enter a subway station (holy, look at the Spadina Subway Extension stations).
But (A) to save costs and (B) to claim political win on transit connection.... Naturally, whatever party (even Ford) that finally begins/finishes Ontario Line is going to jiggle things some X amount -- 10 meters, 25 meters, 50 meters, 100 meters, whatever amount, to try to make the cost and transition-connection politics work out as much as possible. One station dot will be a long walk, and the other station dot will be a short walk. Imperfectly, but definitely not directly underneath either dot pictured (Exhibition or Ontario Place) -- the budget won't quite allow either situation. The cut-and-cover cost-cut opportunity means it'll be south of "Exhibition Dot On Marketing Map". The pressure to cut TBM costs & protect for west ward extension means it'll be north of "Ontario Place Dot On Marketing Map". Cost-savings will will favour some placement south of Exhibition, but not as far south as that dot.
But what does the information that actually goes to the bidder look like?
They haven't created that map that goes to actual construction.
THAT one will be the ONE we will need to pay attention to.
You don't and this toilet-paper napkin sketch to a construction company if you're trying to save money. You'll just be paying them to fix the line alignment because of law of physics of trains not being able to turn sudden 45 or 90 degree angles without a curve.