Thanks for your response. Makes me feel better. If I just add my devices to the Home App I guess I do not have to worry about the Homekit App. ( HomeKit: The ultimate guide to Apple home automation | iMore
https://www.imore.com/homekit
HomeKit is a framework that connects your home automation products and lets you control them with your voice, via Siri, and your taps, via the Home app for iOS. Here's an example: Say you buy Elgato's Eve Room, a HomeKit-enabled product that monitors a room's air quality, temperature, and humidity.
Hope fully it is as you said and we mortals do not have to worry about it.