Ain't they even the market leader? And problems with reconnecting when a devices comes out of sleep mode are common. I have an USB WiFi adaptor who has the same problem when the laptop awakes from hibernation mode (STD). This prevents the PC from connecting, but doesn't interfere with other devices connected to the same network. However, I have suspicions that Apple products are problematic when used in WiFi networks together with computers running on Windows. In my experience, this seems to slow the network down. But reports in the internet suggest this is based on a compatibility issue between Apple and Microsoft, not on something related to the WiFi standard. The problem isn't serious enough to warrant confiscation of devices, and no Apple products have been banned in Europe yet. So, sry, but this explanation isn't really convincing.
IDF soldier wounded in air force base fire last month succumbs to wounds (Haaretz)
from the article: Why has Israel banned the iPad?