Generally the opponents ask for it to be recorded, or not. Of course it is not an accusation of dishonesty.
In the actual case it is obvious that it is going to be recorded - what reason can there possibly be for not recording it? - so who cares whether it is a psyche or deviation anyway? The only difference is that if you field a psyche there is an automatic minimum PP as well as an artificial adjustment: if you field a deviation there is no automatic PP, just an artificial adjustment: since we are told it was not fielded it makes no difference which it is.
Whether a call is a psyche or not depends on the pair's actual agreements. Since they are presumably legal they cannot include 7 HCP.
In practice they have agreed to play Benji Acol without discussion of light openings, so it is a psyche rather than a deviation. But it does not matter.
PeterAlan, on 2011-January-29, 13:44, said:
W, for example, took the view that it was just a (very) light opening bid, made in the context of a relatively informal event.
At least we know that West considers it a psyche.