You need not have bothered with the exceptional effort you did.
In such circumstances, water the plants thoroughly just before you leave, and move them back from direct sun so the desiccating effect of it is reduced, and they would have been fine.
That is especially true of any plant with pseudobulbs (all but 2 of those you listed), as they are storage devices, and by moving them temporarily to reduced-light conditions, their metabolic rates would be decreased, which prolongs the period they can be "abandoned".
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