Was Scientology the reason Nicole Kidman decided NOT to mention her two adopted children with ex-husband Tom Cruise at the Golden Globes?

Why does Nicole Kidman have a history of not mentioning the two adopted children she shares with ex-husband Tom Cruise at awards ceremonies?
After the 50-year-old only mentioned her youngest children with country singer Keith Urban - Sunday Rose and Faith Margaret - during her Golden Globes acceptance speech on Sunday, fans on Twitter were left baffled.
But it seems there were no malicious intentions behind Nicole's decision not to thank Isabella, 25 and Connor, 22, who are both Scientologists.