The P-8 is based on the 737-800 NG, which is shorter than the 737-900 NG and 737-9 MAX. It shouldn’t have those door plugs (which are there in case airlines want to max out on seating and convert the door plugs to working emergency exit doors) Also, the P-8 doesn’t have the bigger CFM LEAP engines like the MAX’s (so it shouldn’t have MCAS) The 737 NG’s are very safe planes. I think you should be okay.
I wasn’t referring specifically to the door plug issue.
The 737 is having other issues as well.
I was in aviation maintenance for 37 years and witnessed defects and failures affecting more than one platform for the same reason.....all it takes is one common part or process between the platforms, and common pzrts processes among multiple platforms is a normal part of manufacturing as it helps to keep costs down....retooling is expensive.