If you give people the option of doing something once a week and then giving them another option that allows them to continuously go back for more chances, naturally people will flock to the latter. It's really no surprise people would still do LFR even with your supposed system. If I run LFR 5 times a week and use coins on every boss, I going to gear up way faster than you. I'm also spending 5x as much time to do it.
I now have better gear, but that's because I put in effort to do something. Me putting effort into my character does not somehow negate the effort you put into yours. I am now leaps ahead of you, and it's not my problem if you feel "forced" to run lfr 5 times just to keep up. Your desire to maintain equal power levels is not the same as truly being forced into doing lfr. You'd just be better off doing flex or normal.