The short answer is no. Without the training to use ropes it's going to increase your risk not decrease. There is nothing more dangerous in scrambling than false confidence.
Any of the skills you mentioned using are rock climbing skills, and only after you've learned to use them in a climbing environment should they be used in the alpine. Rope work, belaying, placing gear, and making anchors all require skilled instruction, and a lot of practice to do safely at the crag, let alone in the alpine.
The "moving together" skill you mentioned is referred to as short roping, and is used to by expert climbers to assist more nervous climbers. In Canada this technique is so dangerous that it is not used by apprentice rock climbing guides (who are already expert climbers) until they start their apprentice alpine training. There are many small little details that go into this skill, like rapid terrain reading, communication skills, protection, micro terrain natural anchor selection, that the video doesn't show. So unless you're a very experienced alpine climber this is not a viable technique and mostly is just a good way to turn one casualty into two.
Your best bet would be learn to climb, then learn to trad climb then use these skills beyond. Most 6 day mountaineering courses, particularly those in the Rockies, offer crash courses in how to follow trad leads. But these are very introductory skills and will require a great deal of practice first in the valley.
The best way to stay safe if bad weather comes in is to be careful, do your planning and avoid it all together. If you find yourself stuck with wet rock, then staying put fo
Last edited by Blue_bird; 02-11-2018 at 12:56 PM.
Reason: slight errors