Again irrelevant. Susano'o aren't different, Itachi's Susano'o doesn't have a bottom to prevent him from being pulled out only a complete Susano'o could do that and Itachi never got one. You're the first idiot Itachi fan I've actually seen, until now I thought you were all a myth, if you learn to read it saysExcept Itachi hasn't been pulled out of his Susanoo, it was Madara.
"That's another supernatural item..I'm sure of it. It's called Yata's Mirror...a shield that can turn back any attack. AND COMBINED WITH the sword of totsuka for offense...He's completely invincible since you need it spelled out for you this means that minus 1 of those items ='s Itachi not being "invincible". Now back to the original premise you proposed: Sasuke's Susano'o being Invincible, pure rubbish as I've explained numerous times. Susano'o can crack as we've seen on the strongest Uchiha and the user can be withdrawn i.e. Susano'o are not invincible. Now does Sasori have anyway to utilize that, no not at all but that doesn't make your statement any less false.
I'll try and put it a way you might accept or grasp being a HxH fan. Killua during the exams said that if he kept trying to get the ball from Netero, he would get angry and kill him. That's something written by the author, later we see that Killua at the exams wouldn't have been able to sneeze on Netero even if he was serious. Just because a character says something within the manga doesn't make it concrete especially when the author chooses to later show it to be false.