Holding hands leads to hugging.

Hugging leads to kissing.

Kissing leads to making out

MAKING OUT LEADS TO THE DaRk SiDe!

In seriousness, though, they went from the top of that tower in the Imperial base to a random beach on the ground. it was just a quick cut, but the tower and the base are both freaking huge, and I doubt the imperials were all just, you know, totally ignoring them. Lets say 30 minutes to get to the beach.

Now, remember wen Jyn explains the plan? they take one hurdle at a time. they solve the immediate problem and the next and the next until either they're dead or the job is done?

Job ain't done until you're safe.