Unfortunately........
Your post is typical of many others in the past regarding aircraft behaviour be it FM, DM or WP.
You could be right, but you will at least have to bring something here other than "its not normal" perhaps..... load out, weather, altitude, speed etc etc etc
No one for sure can say either way what's right and wrong regarding characteristics of particular aircraft in certain circumstances as there are too many variables attributing to different behaviour due to the flight conditions.
Lets just say someone using pure mathematics could "guesstimate" the glide slope and plot a chart.
But another "chart monkey" will come along to disprove it.
Meanwhile...........
Here's some He111 wings minus control surfaces till the next update comes along...........