For decades, SINUSOID was the a key companion in our PI lives. But now SINUSOID is starting early retirement...
https://customers.osisoft.com/s/knowledgearticle?knowledgeArticleUrl=kA01I00000079SKSAY
PS: Understandable though... for security we need to move to small footprint.
SINUSOID and its 9 brethen are merely collateral damage to the decision not to include any interfaces in the PI Server installation. You may install still install the Random interface and those points as a separate installation. I can't imagine ever getting rid of SINUSOID as so many learning examples depend upon it.
I find it a tad annoying that I must do a separate install.