Having above considerations does not guarantee readers will always get good news...
Well, I find this whole para does not answer what your prompt expects :( ... What it asks are;
What factors do you think influence these decisions? Do we become used to bad news? Would it be better if more good news was reported?
you need to answer the above three questions. So, the above para should be more focused on answering "Have we become used to bad news?" Answer that yes or no and justify that position.
Students who read good news will be able to learn from fact ideally.
This idea is not expressed clearly. Better rephrase!