FotJ Force sub: Sirak

What if, instead of Abeloth, it was Sirak that Luke and Krayt faced beyond shadows?

Is Sirak Abeloth's host body?

Nope

Luke takes selfies with his son while Krayt sexually molests Sirak in the background.

Not even kidding. I picture Krayt just slapping Sirak's saber aside then shoving his up Sirak's arse out of spite on how pathetic he is.

But can't Sirak switch forms seamlessly?

XDDDD