Yep. If it looks interesting to you, I still suggest you try it. For all you know, I'm just some dumbass that plays differently than you. It is cheap to start, I can give you an astral projector. Unless you plan on stealing Pursuit of Faith, can't help you there, already sold mine.
But just in case, let me elucidate on my points.
I've yet to find a totem build where totem activation time wasn't at least annoying. You can kinda work around it by placing totems ahead of you in expectation of monsters. I'm not a huge fan of that, I'm much more of a "see shit, kill shit" player. There's a feelsbadman to frequently placing totems in what winds up being empty space. But even then, there will be times where you need to kill shit right away, so you place totems, and they kill your totems before they get a shot off. So you run away like a bitch.
The build felt squishy despite Inquisitor regen and 20k+ armor. I know that's not enough for high end these days, but I also wasn't throwing it at that. I was getting one shot by Fairgraves in Mao Kun. EB-Mom is a really appealing way to solve mana but I think it ends up being defensive negative. I have no math to prove this. It also looks like Mathil ended up speccing out of it too(maybe he never did?). You don't really need EB-MoM as Heirophant, but I wasn't sold on Heiro overall. The class looks kinda lackluster since they kneecapped mana stackers.
The totems are dumb. You get little bits here and there where they fire at the wrong shit. This is similar to minion gameplay. It doesn't happen as much, but I know to look for it having tried and been disappointed by most minion builds.
Their damage was underwhelming when PoB said the exact opposite. Versus tough shit like Expedition, they were falling behind explosions and getting killed. Maybe I was dumb and consistently enabled a "cannot be frozen, cannot be chilled" remnant, thus negating Heatshiver. But Cold Exsanguinate Mines came through where Shockwave didn't. I think they just plain weren't doing enough damage to freeze. Harvest mobs were another place where they would fall behind the stages of spawns.
Maybe Marohi Erqi + Hrimsorrow + Heatshiver was spreading the build too thin. However, I found too much distasteful about core of the build. I really wish totem activation time was scalable. And why is the major totem survivability node at the bottom?