Oh no. Similar discussion on the „how did the workout feel“ rating.
I think it was in the https://www.trainerroad.com/forum/t/suggestion-for-those-who-find-progressions-too-intense/83685/248 thread.
People not being able to decide what feels like „moderate“ to „hard“ to „very hard“. Same might be with emoji’s…
Solution: Just ask for the number on a scale from 1-5. (Maybe giving a smiley or word behind the number as additional hint).
Or even fewer options like 1-3 as chad showed above with red/yellow/green light.
Or 1-4 and if you want to keep the smilies:
1 - 
2 - 
3 - 
4 - 
In the end you’ll convert it to a number / weight to feed into the algorithm anyway.