This late in the patch cycle:

Those players capable of getting/desiring upgraded lore weapons or Midan weapons have had them for some time now.
Those players wanting to grind out an anima weapon to i240 have already done so weeks ago.

There's no reason to lock access to i240 weapons to casuals this late in the game. Everything we have is about to become obsolete, and characters who are gearing up for the patch and have been limited to Palace of the Dead weapon SHOULD have the opportunity to get to i240 in a way that fits their play style. Otherwise, on patch day these guys are going to be entering the new content a step below the rest of us on gear, and that's going to cause resentment on both sides. Now if they were nerfing Midan content that would be a different story.