It is very hard to find out who exactly is responsible for omitting certain lines from the readings. I always look them up and you know what I found? The omitted lines, almost 100% of the time, have to do with sin and punishment for sin or God’s displeasure and consequences for it.
My own opinion is that it is just a further watering down of the faith. God is kind and merciful but He is also just. Hearing about God’s wrath in the readings is just, well, not something we want to hear (according to the editors) but we sure need to hear it!
Sometime in the last year, one of the readings about driving out demons ended with “…this sort can be driven out only by prayer”. It ended right there. I heard no less than 3 people around me whisper "“and fasting”! Now, who else but the devil himself would not want us to know that prayer AND fasting is what will drive them out? I believe in certain cases of omission, it is downright purpose driven and diabolical.
Occasionally, I can see omitting for purposes of time, as long as it isn’t changing the meaning… But just because the text might be “difficult”? Give me a break.
Sincerely,