If you're using the "what goes in the pot" method then you list the names of every ingredient that goes in the pot. If you list the fats, you list the alkali. If you list the fragrance, then you list EDTA or the colorants. And so on.
Frankly, I don't know of anyone who puts "saponified oils" in the pot to make soap. Last time I checked, most soapers put fats, water, and alkali in the pot, not saponified oils.
Or use the "what's in the soap" method, as commercial soap makers do. If listing an alkali (sodium hydroxide) is a horrifying thought, then this is an acceptable way to avoid that nasty name. But do it right -- sodium cocoate, sodium olivate, etc, glycerin, water, etc.
If a soaper wants to list all those yummy oils and fats (as per "in the pot" method) as a marketing tactic, but can't stomach the idea of also listing the alkali that is the one amazing ingredient responsible for turning those oils into soap .... well .... frankly, I'd rather see a soap with no ingredients listed at all (which is frowned on but still legal in the US) than an ingredients list that is deliberately deceptive.