Why aren't there back door removal guides?

(The back door is removed similarly for Moto g5 plus, Moto g6 and Moto g7) Why won't anyone show a back door removal? Yes it's difficult, but you won't damage the display and other components between you and the battery. I did the standard procedure for battery replacement for moto g5 plus which involves removing the display, and I damaged the display, and the proximity and fingerprint sensors don't work. Finally, the phone has a big bulge in it now where before there was none. I know it was operator error (me), but I'm not retarded and I had the proper tools. It could save much frustration and money if someone would show a back door removal for battery replacement on these phones.