Blinky was not a regular cat. He was the Star Cat, a spiritual entity split from Ves' own essence and given a life of his own. He was simultaneously an autonomous existence as well as an extension of his source.
All of this meant that Ves could choose to keep himself separated from his companion spirit or to embody Blinky so that the lines between them blurred.
Right now, Ves was only partially embodying his cat. Blinky was able to wield the powers of his own body the best.
If Ves took direct control, he wasn't sure if he was able to channel his companion spirit's various strengths effectively. There were still substantial differences between a spiritually-sensitive human and a spiritual existence that was literally designed to manipulate and digest energy!
He first instructed Blinky to leverage his abundant spiritual energy reserves to empower the Amaranto in some way.