What's your question? Ask

Yes, as long as you replant in a suitable location and keep it watered, it should do fine. This artcile will help with preventing transplant shock: https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm

You can certainly tie them together in areas of heavy snow. In fact, it's rather a common practice.

Here is an article on Sky Pencil Holly: https://www.gardeningknowhow.com/ornamental/shrubs/holly/care-of-sky-pencil-holly.htm

Are all the leaves affected? Are the leaves overall yellow cast or riddled with yellow trails or yellow spots? How does the rest of the tree look? The answer to these questions could mean the difference between a diagnosis of cold injury, a fungal infection or an insect infestation. More than likely, however, this is due to cold injury. Here is an article on cold damage in shrubs with a prescribed course of treatment:
https://www.gardeningknowhow.com/ornamental/shrubs/shgen/winter-damage-of-shrubs.htm

For additional information on yellowing leaves on hollies, please refer to:
https://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-yellow-leaves.htm
https://www.gardeningknowhow.com/ornamental/shrubs/holly/diseases-of-holly-bushes-pests-and-diseases-damaging-holly-bushes.htm

For more information on the care of sky pencils, please visit the following link:
https://www.gardeningknowhow.com/ornamental/shrubs/holly/care-of-sky-pencil-holly.htm

From this picture it would appear they have grown pretty wide.
They need to be pruned in order to gain stability.
Prune back any branches leaning out or crossing over.
Prune them all the way back to within an inch or so of the main branch.
Prune the top and sides every 2 to 3 months during the growing season while the plant is young. This will force the plant to build stronger stems below and as the plant gets taller and larger it will be able to support itself.
Only use a slow release fertilizer, this will make sure the shrub doesn't grow to quickly from a quick shot of nitrogen.

https://www.gardeningknowhow.com/ornamental/shrubs/holly/care-of-sky-pencil-holly.htm

This holly, as with most holly shrubs, performs well in full sun. That said, it does tolerate shade. I don't think the shade, however, is making the shrub bushier. Sometimes these hollies just tend to grow wider, but this can be controlled with pruning. Normally, these shrubs don't require much pruning, if ever, though they respond well to it whenever some light trimming is in order. To control its height, simply cut off as much from the top as necessary, though never take more than a third off the plant's growth. For it's overall shape, just trim the sides up to a width that you prefer.