The TLI+44 PAD is for a direct return abort back to Earth, without flying past the Moon. They are meant to return you as quickly as possible, spending most of the nearly 10000 ft/s of Delta V your CSM has. Looking at the transcript, the real Apollo 8 mission had a DV of 6070.1 ft/s on their Maneuver PAD. So you are right on! You can of course ignore these PADs, unless you intend to skip going to the Moon.
So from your previous Orbiter log file I know you are using the May 13, 2020 release of NASSP. I could switch to that release version to try your scenario, but I think I know what is going on already. Don't update the NASSP version in mid flight though, there have been many MCC updates and your scenario would definitely be broken then.
I think your NASSP version was in a time window (from mid 2019 when I last flew Apollo 8 until I fixed it a few weeks ago) where the timing of the MCC-3 update was wrong. It comes at 18 hours before LOI instead of 23 hours before LOI. So I think everything is going fine in your mission, it's just the one update from mission control that comes too late.
You can cause the update to happen through the debug menu though. So wait until you think you should be getting the MCC-3 update (about 46:15h GET) then open the CAPCOM menu of the MCC, press 9 for "Debug Options" and then press 4 for "Inc State". That should make it switch to the next MCC state, which is the MCC-3 update. And very likely you will get the "MCC-3 is scrubbed" message then.
So just a small bug in that NASSP version hopefully and no issue with your trajectory.