The difference between CBB5 & BB8 is that Emily from BB8 said a word which is 100% racist. The (N) word.
In CBB5 Jade, Jo & Danielle did not say a racist word
They were words & comments which may have been construed to some as containing possible racial overtones.
That was the significant difference.
The CBB5 race furore was due to the way in which it came over & fanatics in India burning effegies.
Also, the housemate in question, who was labelled as "The Victim" was non-other than a VERY famous Indian Bollywood film actress, who has a huge fanbase in India & with the Indian & Asian community in Great Britain.
When Shilpa got bullied & the racial-overtones furore began, it caused a riot.
Whether Emily said the (N) word or not, BB could have just edited the word out, "Whatever it was" & Emily may have stayed in & the word or comment could be "Brushed under the carpet", so-to-speak.
But this time, in BB8 that was impossible.
nodisharmony