Well a bunch of games handled it with portzones right in front of the boss as you´ve in alliance raids here.
Of course such puzzles won´t be something new once you´ve solved that. But it´s the same with any boss out there. You did it, you know what´s coming and in kind of FF14 it´s really static. Nevertheless... playing a full raid with 4-7 bosses and bosses where the first part is actually the way to him could be somehow more interesting than just porting directly into them.
I could, but i won´t. It´s definately not a good design there. Castrum and Delubrum are way more special and interesting in this way. Both just lack on more challenging aspects. Sadly i wasn´t able to play the 48 mode yet since the most seem to be feared or somehow uninterested to doing it.