Saulo Ribeiro and 'Margarida' Pontes seem to have game when it comes to takedowns. Just because their Bjj, don't assume they can't throw.
...and where did these throws come from? Judo.
I'm no expert on the Gracies, the history of bjj, etc. but as far as I'm aware "BJJ" and "Gracie Jiu-Jitsu" are synonymous. What you seem to be talking about is vale tudo training, which largely came from the addition of boxing and muay thai. Look at "Mastering Jujitsu" by Renzo Gracie. If those strikes aren't boxing and muay thai strikes, I don't know what are.