Kodak does not recommend Photo-Flo's use on vinyl. This is a true statement. However, it is based on legal liability and not chemistry. If you call Kodak you will find out that they will say "not recommended for ......." on anything unless they have specifically tested it. Kodak has never tested Photo-flo on vinyl. Thus, it is not recommended. This does not mean that Photo-flo is harmful in any way to vinyl.
Photo-flo is a heavy alcohol. Alcohols do not damage vinyl in normal record cleaning usage. In order for ethanol (a much more reactive alcohol than Photo-flo) to damage vinyl it needs to be 90-100% pure, in contact for over 20 minutes, at a temperature exceeding 130 degrees fahrenheit. Isopropyl is even less reactive than ethanol and Photo-flo significantly less than isopropyl.