I didn't get pinged but this isn't one of those types of threads, so I'm commenting here.
Agree.
Like someone else mentioned, they could get High Animalistic.
Pretty sure the shotgun kills it if you get close enough, so it's not durable enough to withstand a shotgun's full blast, only part of it, but even that part could be argued to be game mechanics. I don't think there needs to be a durability for surviving a shotgun pellet on its profile.
Agree.
It takes a while to kill a person, so I agree.
While I'm personally unsure if the planet-eating monster and the company monster are one and the same, either way the tier 5 rating is indeed unsupported. I mentioned the calc previously, but someone put tier 5 on the page anyways.
I partially agree with the resistance removal, but for a somewhat different reason: I don't think you can tell if you're hitting the monster. There's not much indication it's in the opening until a tentacle comes out. It could be not next to it until it decides to shift a limb over.
The vent thing was covered so I won't mention it. I will also note that if the vent thing is being kept, will profiles for night monsters get Underground Mobility due to crawling out of the ground?
Here's an example with Forest Keepers.