No, you wouldn't have Miracle OR Gate; Miracle and Gate are on several different Domains each, and thus would be removed.
Besides, Persistent Spell is actually quite overpriced, as are most Metamagic effects. They also lose many of the spells that are go-to for DMM Clerics (Divine Power, Righteous Might, and Divine Favor are out the window, iirc).
Sure, it doesn't power them down too far, but that wasn't my real intent, or else I would be posting this on the homebrew boards. I was only wondering how far you could mutilate their spell-list before the class becomes unusable.
I mean, look at the Wilder; great list of Powers, sucky number they can actually access. They are Tier 4 for pretty much that reason.
Though I did see an argument somewhere that the tiers should be renamed as follows:
1. Tier 3, 4, 5, and 6 are now Tiers 1, 2, 3, and 4.
2. The old Tier 1 and 2 are renamed something else.
Because, as the person making the comment pointed out, your trying to fit two VERY different progressions and measurements of power into the same rubric.
Because if you try to just measure flexibility or power with the Tier system, it collapses (in my experience, at least.)