The 100 M€ valuation was clearly a "your sponsorship is to big, let's cut it in half and settle for 100 M and everyone is happy".
Then at the demands of Tebas and the cartel, and immediately after Neymar/Mbappé transfers, UEFA had to do something to calm their historical members. They used several external audit companies and put the "fair market value".
The third attempt though is already dodgier. It is the portuguese european judge (that i described as an hardliner earlier) who decided there was a
manifest error made by the investigation team and asked them to restart a deeper investigation and put a bigger devaluation on those contracts.
https://www.ft.com/content/c4cec6a2-7ed6-11e8-bc55-50daf11b720d
It is quite telling that from 2014 to 2017 (and the exact moment PSg bought Neymar and Mbappé), UEFA had seemingly no problem with QTA fair market value.
Why is suddenly this contract made 7 years ago (and in the meantime, Qatar had reduced the initial 200 M given to PSG to 145 M) so sensitive according to you ?
The only incident that sparked their wrath was getting those galacticos signing from the old cartel.