While I can't speak for her, the sentiment expressed by Maria is entirely Orthodox. In no way is it meant to express a guarantee (as per the classic Protestant "Once saved, always saved" statement). It's an expression of hope, that salvation is a process and not some one time event.
We are saved by the Incarnation (cf St. Athanasius). We are being saved by participation in the sacramental life of the Church. And we hope that we will be saved when we face the Judge at the end.
Again, we all know you don't like Maria. I'm not particularly fond of her either, to be honest. But there's nothing wrong with what she posted.
And once I figure out which one of Fr. Hopko's podcasts addresses this, I will post a link to it so you can see for yourself if I took his words out of context. I sincerely do not think I have nor do I have a track record for doing so. If anything, I'm overly-scrupulous about context.