Should the MTA Eliminate Express (4) Service During Peak Hours?

Last week, there was a sick customer at 167 Street and s/b Image may be NSFW.
Clik here to view. service was delayed for the morning. When my train pulled up to 167 Street, a Image may be NSFW.
Clik here to view. train, running on the express track, passed the station and had a lot less people than on my train. The worst part was when my train entered 149 Street-Grand Concourse, it stopped on the local track and after that, it kept on going to 125 Street without any problems, or not stopping in the middle of the tunnel, or even staying in the station. It didn't matter whether a Image may be NSFW.
Clik here to view. train was coming, the t/o went at an average speed like a normal off-peak train would. What I'm trying to say is that, placing the Image may be NSFW.
Clik here to view. train on the express track from 149 Street to 125 Street should be stopped because it takes up more time and slows down everyone's commute. I think the MTA should just let southbound Image may be NSFW.
Clik here to view. trains run on the local track at all times; also, waiting at the station for a Image may be NSFW.
Clik here to view. train to pass, isn't as bad as waiting in the tunnel on a packed track waiting the track to switch. What do you guys think about this?