Just the word 'unofficial' is enough to stop most large companies using them. It is (was?) the same with Firefox- they never offered an MSI installer for use on corporate networks. There were unofficial versions, but you could never be sure that someone hadn't bundled something extra in there.
"but you could never be sure that someone hadn't bundled something extra in there".
Irony,
With Oracle, your are SURE.
Well, this thing about Java shows that you can trust not even official versions...
Is there an OpenJRE(or even a need)? or do we just run OpenJDK?