would you not expect to be a bit less fresh the day after a threshold day?
You can choose the hours and days you train, but TR will warn you if it thinks it is too much.
Ramp tests are not a reliable way to test your actual physiological FTP.
Depending on one’s ability it’s extremely easy to over test using a ramp test.
TR’s aiFTP is a number that is used to set your threshold to around a 3.0 level workout, not necessarily to accurately reflect a physiological maximal metabolic steady state.
If you ask nicely I am sure TR would be happy to look at your training and give their advice, wether here publicly (with your permission) or elsewhere. 