Ethics- Sobhani

Can anyone explain why Sobhani has not violated CFA conduct with regards to Fair dealing. Question #5

Violation of fair dealing is when you deliberately disadvantage one client in order to advantage another. In this case, Sobhani advised one client to not invest because his momentary lack of liquidity, however, by the time the unliquidity period is ended for that client the investment opportunity would have passed (bad luck).

thanks