Thanks for clarifying, and boy, do you have my sympathy. That's got to be incredibly difficult. I wish I had some good insight. All I can really do is reflect on how I feel about my practice partners. Some of them are people I'd trust with my life, and then there are those that I consider to have trustworthy intentions but not always trustworthy judgment (for example, people with good will but poor control). And, yeah, once in a great while I've run into someone who isn't necessarily out to harm me but is somewhat indifferent to my safety. This may be no help for you at all, but I think I'm able to train with people in the latter two categories if I can trust my own abilities and judgment to keep myself safe - basically, if I have enough control over the situation. I guess that's probably a pretty common accommodation, otherwise we wouldn't be able to train with beginners.
Basically what I am seeing right now is the same steady increase in skill in applying certain techniques, and a 0 improvement in other techniques. While that may not be a big difference right now, in a year or two, it is going to be a very glaring deficit in my waza. So I've identified a problem, and I know why some things are improving and some are not, but now I just have to figure out how to fix it, and that's the issue I am running into right now.