Jose wrote:
"Say intentions" should not be something pilots fear hearing.

It's not. But "we've revoked your clearance. Say intentions." is.

"We've revoked your clearance" boils down to a re-route. Surely
you're not saying that you fear getting a re-route? It happens all
the time.

"We've revoked your clearance, say intentions" is just a re-route plus
an offer to let you decide how you would like to be re-routed. Why
should that be something to fear?