Hasn't been patched yet and I agree. Synth-IA is a pretty useless skill to begin with, I find it weird by itself that you need a skill just for clients to be able to check themselves out but it's a welcomed skill as well in some situations. I guess I shouldn't exactly call it "useless" as there are times when the skill feels useful, but more like the skill is pointless as it's just another skill to lose money over that holds very little meaning in terms of making the game more fun, as an argument before by the Dev, said that he's tried removing the necessity of drag & drop function to fulfill client orders but said it felt boring so he reverted back to the drag & drop function -- Synth-IA to me feels very much the same way except it isn't just making game play boring, it's just almost pointless to have. Synth-IA should be reworked into something different. I'd find it to be more useful if Synth-IA was a skill that removed the unnecessary anti-fun tediousness of having to drag & drop items to fulfill a clients orders, can't tell you how many times the drag & drop function annoyed the hell out of me fumbling around to fulfill an order in time before a client checks themselves out.
But yes, the Take Out skill especially when combined with the Care skill does indeed maximize profits. It's just that at the very earliest days length in the game (if you're under sub-50 days it's way too early and unnecessary spending money on leveling up those skill points across 3 Main Maids, it's best spent saving that money up to immediately max out Ame's skills if possible when she's unlocked and then just let Ame take over the cafe duties for awhile.) It takes way too long otherwise if you're struggling to save up trying to upgrade 3 Maids plus Sergil over the long term. Took me about almost 100 days upgrading those three in one play through, and on the second play through I tried something different & focused entirely on Ame, and holy hell Ame is a Godsend. What took the three main Maids almost 100+ days to max out upgrade skills to maximize profits Ame could do in under 50 depending on how soon you can unlock her.