It does indeed look like G.INP has been removed entirely - though it looks like it only existed downstream anyway. We'd expect that, with an ECI cabinet.
In the old configuration, you had G.INP protection downstream (with INP=44, delay=0ms), and standard FEC+interleaving protection upstream (with INP=2, delay=8ms). This means you had a round-trip latency delay of 8ms (probably just over), and probably lost around 15% of the upstream bandwidth to the FEC process.
In the new configuration, you now have standard FEC+interleaving protection downstream (INP=3, delay=8ms), and no protection upstream (INP=0, delay=0ms). This means you still have a round-trip delay of 8ms (but it has swapped from being within the upstream path to being within the downstream path). Without FEC on the upstream, you notionally have more bandwidth available to the user data. However, on a lot of lines (at least where capacity is available), the modems choose to add extra FEC protection even when DLM hasn't asked for it; in your case, the spare capacity isn't there, so perhaps the modems haven't bothered to put it in place.