I was looking up something else and came across this interesting quote.
“If you wish to invoke Venus, you do not succeed if there are traces of Saturn mixed up with it.
Aleister Crowley in: Magick: Liber Aba, Weiser p. 211
IMO the saturnine effect can apply to any planetary working. It may be sensible for the individual to consult the relevant chart to see if there are any baneful aspects before undertaking a working.
Given that Saturn is said to be the lord of karma it is conceivable to me that Saturn may have some influence but IMO it can be for good or bad as is the nature of karma.
Saturnalia sounded like fun!