Given that the only reason I can see for dragging from a packer to the hands area would be ammunition for a missile weapon, it may well be a feature designed to slow down missile weapon users. As for dragging from your bag inventory to the hands, it's faster to just click on the hands and select (imho).
I will admit that there have been many times when I have wished to drag armor and jewels from my storage packers to my equipment tab, but I can see excellent coding reasons why you might want to have the equipment tab do a lookup to only one container rather than having to check for multiple accessible containers. (Note that you cannot drag and drop from your pack to the equip tab either; the boxes in the equip tab are clearly filtered lookup operations looking into your pack for compatible items.)
I will admit that there have been many times when I have wished to drag armor and jewels from my storage packers to my equipment tab, but I can see excellent coding reasons why you might want to have the equipment tab do a lookup to only one container rather than having to check for multiple accessible containers. (Note that you cannot drag and drop from your pack to the equip tab either; the boxes in the equip tab are clearly filtered lookup operations looking into your pack for compatible items.)
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Remembering Tyneetryk
Phaedreas Tears - 15 years old and first(*) of true neutral guilds in Atys.
(*) This statement is contested, but we are certainly the longest lasting.
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