Hi ....
Yeah, the figures there aren't 'uniform' in the way they are presented ...... but I totally get the gist of what they are saying and yes, as far as the auto-indicative PQT test goes ... you have a damned good pair of wires !!
In a nutshell, working down the list ..........
Your circuit has no 'battery contact' issues and obviously not connected to the mains voltage either
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Your circuit has no short circuit/resistive short circuit condition, and neither any kind of 'Earth contact fault', as the IR (Insulation Resistances) are all mega-ohm values.
The "Disc Comp" is actually 'Dis Capacitance' and I can tell you now, there's not many circuits that get tested will have a perfect 100% value !!
The only thing I don't understand (and I appreciate you had to write them down hastily), is the 'Loop resistance' value and subsequent A to E ... B to E values.
The loop resistance of 504ohms, should then see a perfect circuit being A to E at 252ohms, and B to E at 252ohms ..... in other words each 'leg' or each wire if you will has the same resistance value for the entirety of its length. Again, something as rare as Unicorn sh1t for the most part !!But fear not, the 'Dis Cap' test mentioned above is as good an indicator as the 'Loop res' test.
An AC Bal of 68.5 is very, very good.
So, all-in-all ...... I wouldn't want that pair of wires swopping going off those results. As mooted previously though, there are a tiny percentage of lines that still error even on lines like yours. Did the engineer perform the xDSL test and run a 'QLT' at the same time ?? That really is the only way left to try and force the circuit to error ??