i'm pretty sure that's incorrect, as the existing EB-5 visa allocations have a specific target of 10,000 visas (which are currently not even close to being used up, only ~1,000 are used every year).

if anything, prioritization is likely to work the other way: EB-1s first, then EB-2s, EB-3s, etc. see language below for EB-1 priority visa workers (with "extraordinary abilities"): http://en.wikipedia.org/wiki/EB-1_visa

note: i am not an immigration lawyer (IANA[I]L).

you may also wish to review language for the Immigration Act of 1990: http://en.wikipedia.org/wiki/Immigration_Act_of_1990