Flyingstone, yep, I agree. It’s a good reason to deny a visual approach.
However the the reason of denying a visual because the specific RNAV procedure doesn’t have circling minima is at least ridiculous.
Also take a look at circling procedures, at sometime, somehow, when you can maintain runway environment you will have to descend to normal visual altitude, treaffic pattern, say it as you wish.
Starting from a VOR/DME, then circling, when landing at adjacent runway, would will have to get low to 1500ft at least! I don’t get why an RNAV instrument procedure won’t allow a visual pattern. Not really valid.