If you are a hodler like you said in your first post, but you saw the arbitrary messages that malicious server operators posted in the past, you are using Electrum as a hot wallet and that's not the recommended way. The positive thing is that you didn't fall victim to the phishing messages. If you used Electrum as a cold wallet, you wouldn't have to worry about server messages, LN, invoices, etc. You can't drown if there is no water and if you are in a desert.   

Sorry, I don't see it. If you don't want to use some of the features, don't do it. It really is that easy.

Electrum wasn't developed to fit just one type of person. I have never used an Invoice on Electrum. But I have also never clicked on it by mistake or just for the fun of it. I have never used the console tab either (can be switched on/off from the settings), but I have never accidently opened it when trying to generate an address. Just use the stuff you need and forget about those you don't.