Four Thoughts on Today, defending the move:
1) We won the game and forced game 5. Be happy. Where were we at on Friday?
2) As soon as Cecil went down, having a good lefty reliever became much more important.
3) Given Price's numbers against Texas and in the postseason, you kind of prefer Stroman in Game 5 anyway. After giving Price some extra work in Game 4, you don't need to manage the egos as much as you would by telling Price straight up that you are going with Stroman ahead of him. This also gives you the ability to use Price in a smaller situational role in Game 5 if needed.
4) Dickey pitched great for months and was a key factor behind the Jays success. He deserved a post season start. This "short leash" start gives you some good innings from him, but also allows you the flexibility to use Price in the more valuable bullpen role, as noted above.
We got the win. We got Game 5. We got arguably our best starter for this situation going in Game 5. We have a fresh bullpen for Game 5. We can use Price as in a situational role in Game 5 against lefties which is valuable. If Price isn't needed in Game 5, you can rest him for starting Game 2 of the next series. Estrada would get Game 1, so you're good.