Oh goody. A whole new style of line stats to work out
Seeing bearer 1 makes me wonder what other features have been turned on alongside G.INP, and what will attempt to use that bearer.
In some places, SRA has been mentioned - which adapts speed to noise in a relatively slow way. Other places have mentioned SOS - which reacts to noise quickly. SOS seems to be related to a "robust overhead channel".
I note that bearer 1 has no speed allocated to it (or it rounds to zero Kbps, anyway), but is heavily FEC protected: the overhead is (R=16/N=32), or 50% - so whatever uses bearer 1 absolutely wants the packet to get through. I wonder if it the means by which SOS communicates?
Anyway, back to specifics for the OP:
I note that bearer 0 downstream might well have interleaving turned off (D=1) but it still has FEC turned on: the overhead is (R=6, N=234), or 3%. That's a lot lower than usually seen with old-style DLM.
When looking at the requirements from DLM, we can see that, for bearer 0 downstream, it has specified an INP of 49, an INPrein of 0, and a delay of 0. That suggests that it wants no interleaving, and is not attempting to fix the REIN-type noise, but is trying to fix SHINE-type noise.
However, as RobertoS notes, bearer 0 upstream still allows a delay of 8ms.
Perhaps this is why there appears to be no change to your end-to-end latency? I guess it depends what your old line stats were.