This seems to be a problem if real. I'd like to read SebastianJu's version.
A single positive default trust feedback makes an account green so it should be given only when one really thinks someone is trustworthy. And as described in the profile page the risked amount should always be set to zero if the other person sends first. It doesn't make sense that an escrow includes a non-zero risked amount unless there's something we don't know, in that case that extra information should be included in the feedback.
I really think escrows shouldn't leave feedback at all unless something particularly positive or negative happened in the deal.
I too am surprised when escrow providers leave positive feedback to the people involved in the transaction,
especially when these people are on DefaultTrust. It definitely gives people a false sense of trust and degrades from those people's rating. I really don't mind when escrow providers give out neutral feedback or none after the transaction, since there is no trust involved on the escrow provider's end.
Edit: I just took a look through SJ's rating and it appears that he puts amounts in for all transactions he escrows. Probably just a pattern he follows but he should probably change that, considering he isn't the one risking the bitcoins.