Slow and dissatisfying

Rating: 4/10 (15 March 2019)

Spoilers:
This movie is like Jumanji with guns combined with the Star Trek Voyager episode ("Bliss" S.5/Ep.14) where the crew is being slowly eaten by a giant organism.
It moves too slowly and moves without the scientific process (which is talked-about, but not conducted).
The first order of business upon navigational disorientation would be to reverse one's steps.
The women went into the Shimmer to get actionable intelligence, but when presented with it, decided to ignore it because of selective ignorance.
Seemingly, a real scientist would grab a sample of something UNUSUAL and of something common AND RETURN HOME IMMEDIATELY (if possible).
The next wave / next trip would be to gain an increased understanding and gather more intelligence.
Also, no one set up a BASE of operations for normalizing the situation.
I can't help but feel the "mutation" aspect of the creatures/animals also aided in covering up what could be bad CGI.
The movie does a poor job of getting us to care about any of the characters, so when they are in peril (or die), it's OK.
We begin to only care about figuring out the puzzle.
There is an underlying sense that the situation will return to normal -- that is until the flash-forwarding starts.
The viewer never really cares and never really gets closure.
There are also logic difficulties.
Primary weapons, but no secondary.
No protective gear of any kind -- not even HELMETS.
No tether, no wired communications.
No PLAN and no leader/group communication.
Once returned:
Surely, surely, surely someone would test these two people to see if they are HUMAN when they return!
X-Ray, cat-scan, something. They did mention heart-rate and blood-pressure, but they could do that at a common drugstore.