Read the thread or GTFO.
Also, it's also a manga fact that Yagura (despite being a perfect Jin) was placed under genjutsu for a long ass time.
What makes you think Yagura was a perfect Jinchuuriki or even a jinchuuriki when Obito was controlling him? If Yagura had the 3 tails at that time then why did Obito had to hunt down the 3 tails with Deidara in Shippuden? Manga said Yagura was a perfect jin but never said he was when Obito was controlling him or do you have any manga scans I must have overlooked? Naruto was placed under genjutsu before being a prefect jinchuuriki so does that pretends to prefect Jinchuurikis? I think not.
As for your thread, your first scan was of IT which even the Sage said takes the Rinnegan and Bijuus chakra to break and Sasuke can't cast that without having both Indra and Ashura chakra like Madara (Hashirama cells did not have Ashura chakra or else Sasuje would have 2 Rinnegan's exactly like Madara) and being the Juubi jin; you can also use the God tree if you don't have the sons chakras. So the first scan is invalid since Sasuke can't even use it.
As for the second scan, if you look at Kurama's eyes before it zooms in on Sasuke's Rinnegan, he's already out of the genjutsu so it doesn't show Sasuke breaking it, only freeing Kurama from CT which seals. For all you know the genjutsu wore off after the Bijuus were sealed but they couldn't do anything after being fully sealed in CT. They could also brak the genjutsu when Sasuke pulled their chakra out since that disrupt their chakra plus the fall is nothing, Kurama took Juubi attacks and Bijuus can take other Bijuus attacks that can change the landscape.
Your thread doesn't really show anything to make us believe the Bijuus can't break Jinchuurikis out of Genjutsus as it was stated genjutsus don't work on them and the only one that does takes the Juubi chakra plus the strongest eye which is near impossible to get. Also all of the Bijuus were looking down so Sasuke turning and glancing at their eyes is not impossible and Sasuke had the power to control Bijuus at MS as he and Itachi said MS give them that power.