After following this thread for the last couple of days, ironically Clues just happened to be on last night. With everything that has been pointed out, it allowed me to pick up on a couple of things that I had never noticed before.
After their first trip through the 'wormhole' when Picard asks how long they were out, Data does say "Approximately 30 seconds." However, on the redo, his answer is "30 seconds sir". Which leads to a more interesting observation. Initially Picard is still full of questions and orders that they reverse heading back towards the Class M planet. This time Data suggests that doing so could put the Enterprise at further risk. Riker then suggests that they could send a probe and Date litterally cuts him off saying that it would certainly be sufficient. This leads to one of those Patrick Stewart moments. While giving Data a stare his eyes go from kind of a 'what the hell is up with you?' to an 'oh shit' look in a matter of 2 seconds. He replies with "Make it so. And put out a hazzard advisory to Starfleet."
So now I'm left to wonder after watching this ep for the 'umpteenth' time, was Picard left with at least some knowledge of the repercussions they would face should they go back?
I always think the same thing at the end of this episode. The first time it happened, Picard wanted to investigate and go back (and there were no 'clues' at that point). They launched a probe and Data modified the results to indicate that it was no longer class M. That later became a 'clue'.
At the end of the episode, Picard doesn't want to go back but they do launch a probe again. Wouldn't they discover that the images of the planet were tampered with, just like the first time? I wish when they were planning to get it right the second time that they mentioned how they would modify the probe so that it returned something that wouldn't become a clue and cause them to start the hunt again. It was the mysterious M class planet that started the entire investigation.
I have always wondered about the time differential between the ship and Starfleet. Wouldn't they all be wondering why Data is saying they were only out for 30 seconds yet Starfleet time is two days ahead? Seems like a major problem with the story.