Faded? no, both ran a season's best (in Dafne's case), a virtual season best (Guliyev).
Dafne, while well beaten in Lausanne, ran 11.04 with virtually zero wind - a good result for her IF it means she has overcome that injury/niggle at last. If so she can work on her speed endurance for her best event, the 200. There's time till Doha.
Guliyev never worries me since he generally turns up in shape for big meets. Admittedly if there are some new 200 men on the block with the talent to go 19.5 then his is a tough ask - but he has had a great career. His 20.01 last week (-0.1) was no disaster. It was 2/100ths off his season best but he had 1.5 mps more wind against him in comparison to that 19.99 in May.
Those times were run in Lausanne which is at 1600ft (500m) altitude. Everyone ran great times in Lausanne because of that.
Instead of the times, look at who they beat and who they lost to, and by how much.
Dafne was soundly beaten by Dina Asher Smith of Britain by more than a tenth of a second. She used to beat her regularly. Ta Lou also beat her by a tenth.
Guliyev loss was worse. He lost to 2 Canadians (DeGrasse and Brown), an Ecuadorian (Quinonez), and of course Noah Lyles. Finishing 5th in a race with 1 American and no Caribbean sprinters is worrisome to me. In May, when he ran 19.99 in Doha, he beat Brown and Quinonez by 2 tenths of a second! Despite the time of 20.01 (-0.1w), he lost to sprinters he had beaten easily in the beginning of the season. So, to me, he's faded.