IMO, people believe ES because they want to, that way they can have their cake and eat it too. I personally think it's the devils way of getting as many as he can to join him in his abode here at the end times before the Lord returns. A last huge desperate effort, and it's working.
It's the perfect scam, gives people permission to do as they want, and get to Heaven too. But in the end, no one is being fooled into believing it, it's what they choose to believe because they don't wan to do as the bible tells them. The Devil loves it.
We are put here to see who overcomes, but with ES there is nothing to overcome, hence no point to the present process.
Matthew 7:13
Enter through the narrow gate. For the gate is wide and the road is broad that leads to destruction, and there are many who go through it.
With ES there is no narrow or wide gate, just claim you believe and go the narrow, wide or something in between. And does "destruction" there sound like heaven to you? So, ES makes that verse completely null. It's like checking your answer in math, if at any point it doesn't fit, something is wrong.
And lastly, do you feel if you just "believe" (And there is a lot to that term "believe" that I don't think you are seeing), you can do any or all of the following on a regular basis and still go to heaven? Or are we going to just make that verse null as well?
1 Cor 6:9-10
Or do you not know that wrongdoers will not inherit the kingdom of God? Do not be deceived: Neither the sexually immoral nor idolaters nor adulterers nor homosexual offenders, nor thieves nor the greedy nor drunkards nor slanderers nor swindlers will inherit the kingdom of God. And that is what some of you were.
Again, can we as saved individuals remained saved if we do those things as part of our lifestyle? If you say no, there is no ES, if you say yes, then that verse and several others a lot like it are a lie. IOW there is something amiss, somewhere. Check your math.
ES, don't believe it, and don't teach it, it's just another Easy Street to Heaven illusion for those who prefer to believe it over the truth..