Sounds like Kim has only seen at the good side of what is a broad spectrum.
There are several factors that affect import survival rate:
- Particular type of plant.
- Condition of the plant at its source.
- Preparation and packing.
- Promptness of shipping
- Transit time
- Transit conditions
- Customs clearance time
- Handling during customs clearance and inspection
- Repacking job by inspectors
- Transit time to destination
- Conditions during that time
- Care in unpacking
- Care of the plant upon receipt.
A weakness in any one of them can adversely effect the survival of the plant, as can slight deficiencies in a few or several.
I used to import about 500 Chinese cymbidiums a month from Taiwan. Bare root, two old growths, one new, usually in spike or bud. Never lost a one; if I lost a bud, it was my sloppiness in handling them during unpacking and potting.
I imported cattleyas from Brazil when I was a relatively new grower. Long transit times meant some were quite desiccated when I got them. Took a long time to recover. Lost a few.
Imported a bunch of species from Indonesia. Small phals were quite desiccated and didn’t make the trip. Other stuff had few issues.
I imported a bunch of vandas from Thailand. Stuck ‘em in the greenhouse and away they went, as if they had not moved out of their origins.