Transferwise Borderless account and outgoing transfers from different account

Payment methods
9

I recently found out TransferWise may not always use the Estonia account for EUR. My last trade sent out from:

Deutsche Handelsbank
IBAN: DE93 7001 1110 4003 **** **
BIC: DEKTDE7GXXX
Country: Germany

When I asked why, they said they will choose the most optimum outgoing account for speed. So I think this will continue to pose problems for Bisq unless we can specify multiple source accounts or be able to change the funding source mid-trade. Perhaps the latter would make sense?