You provided this link which didn't discuss Rev 22:13 at all and just gave some examples which have no bearing on Rev 22:13.
But the real question isn't what they think, but what God knows.
Of course it matters what Jesus' words meant to first century Christians! That's an incredibly, um, funny thing to say and makes absolutely no sense! C'mon, guy, stop and think about what you belong to - you're not being given real answers to very important issues.
Men can study and argue and make point and counterpoint till judgement day. If a person wants to know the truth however, they have to ask God with faith and sincerity to reveal it to them.
That's another standard Mormon line. I hate to call it that but that's what it is. It means nothing without the Bible to compare against what we think we hear from God. Otherwise you're setting yourself up to fall for any teaching whatsoever. Please, stop and think about this for awhile. You or any Mormon can contact me privately anytime you want.