I have had alcohol laced chocolate, and I guess the skepticism for this trope in this particular story is -
a) theyre laced with whiskey which has an extremely strong taste so its very surprising she didn't notice at least from the first few.
b) to get drunk on chocolate laced with alcohol (which mind you, you're also eating something which will reduce the immediate impact of alcohol) you'd need to have a significant amount to get drunk on it.
c) shes a doctor, someone researched and knowledgeable she's not some sheltered character who is unfamiliar with alcohol.
TLDR: basically that whole situation just seems highly unlikely and annoyed me lol, but hey that's just how I feel.

yall shes a doctor, youre telling me a fcking doctor can't tell when chocolates have alcohol in them?? and to double down the emperor said that theyre strong whiskey, and she ate 10 of them without noticing?? I know it's not a major plot point but I hate this trope ~~I accidentally had booze and lots of it, now Im drunk heheh~~ when the FL's are supposed to be smart, I'll give it a pass for the 'sweet/naive type' FL's but not the ones that are supposedly smart.