I think it to be generally accurate, but I would not be dogmatic on any one specific area. This is the problem you run into when proposing theories regarding events that are not taking place today.
Of course you can determine how things happened in the past.
I cited Mt. St. Helens which only shows how it could be done, obviously flooding to such a degree as described in Genesis is not something we are ever going to be able to observe.
Of course the Mount St Helen's example is just silly and does NOT show anything like what is seen in the Grand canyon.
So are you up to try to show the Flood Model from what is seen in the Grand Canyon?
I warn you, no one has EVER been able to do so, but who knows, you may be the one to do it.
If you want, we can start with something simple, like what is the Flood Model that produced the materials of the Vishnu Schist?
Immigration has been a problem
Since 1607!