Hmmmm. Coming from the pov where I already knew Jack/Ianto were a couple, Exit Wounds had some very nice Jack/Ianto moments, namely every single exchange Ianto had with John, the intensity of his "What have you done with him (Jack)?" to Gray, and the "I thought we'd lost you" / "Never" exchange when Jack comes back. But you are right those things wouldn't have clued in a first-time viewer to the fact that J/I are a couple. However, aside from the fact that EW was a season finale, that's not unusal for a Torchwood episode. With judicious selection, you could parade maybe half of all TW episodes in front of an uninformed viewer and have that person never realize that Jack and Ianto are even sleeping together, much less that there could be something more between them. Which I guess is exactly what tencrush is complaining about!