Wait a minute, you're embarrassed by a club not wanting to spend €120m before August 10th during a pandemic? I think you need to reevaluate what embarrasses you.
There are many reasons, the reality is that we don't know, but I'll give you a few anyway.
Dortmund keep moving the goalposts. August 10th was the deadline yet they're telling people he's still for sale at €120m. Does that change to €120m upfront with more add-ons if we turn up with that amount in cash on day one? What leads you to believe that Dortmund will keep their word at this point?
What do you think would happen if we had offered €120m on the first day of the window and Dortmund rejected? What happens then? We go from club to club asking about Dembele, Costa, Coman and Sarr, while all these clubs know for a fact we were about to pay €120m for a player. How do you think those negotiations would go?
"Hi there, it's Ed. The pandemic has hit us hard, we've only got £40m to spend on your player". Yeah, course you have Ed...
No one is selling their good players the first week of the window, but after a few league games, you've got players who want to play more and are now agitating for a move because they've not been picked for the opening fixtures.
We've also got a load of players we have to shift off the books.
There are your reasons.