My new Enchi PH pied hasn't flicked tongue once

[Skiploder]

He's in a tub with two hides, a water
dish, sphagnum moss, and an average
temp of 82-84 with the hotspot on 88-90.
The room he's in has little to no traffic.
And she didn't base the IBD on his tongue,
but his lethargic reaction of coiling his tail
and the ability to be able to hold his weight
while attempting his curl his tail around her
finger. And it just seems like an abnormally
small tongue to me. Either way I'm still not
pleased with my animal, being alarmed day 1.

Everything hasn't been swell for weeks okay?
This is just a festering cherry on top of it all

RustlewoodReptiles

Again, those symptoms could be anything - here's a brief list:

Osteomyelitis caused by bacterial infection
Viruses caused by OPMV, herpes virus, ranaviruses reoviruses, adenoviruses, flaviviruses, picornaviruses, caliciviruses, etc, etc.
Crypto
Mycotic gastroenteritis
Bacterial infections involving pseudomonas, aeromonas, citrobacter, klebsiella, enterobacter, salmonella, etc.

Any vet that jumps to the IBD conclusion is showing nothing but a lack of experience. Your snake is showing general symptoms which could be associated with any disease or conversely - not at all. A communal brainwashing of the snakey community leads people to blurt out "IBD" the second a python or a boa shows signs of distress.

Considering you just got him last week, and he's been to a vet and handled and what not, I'd give him a chance to de-stress before he's shipped, prodded or poked.

Now if it was me, I would send the snake back to the breeder and get a refund. Hopefully, on the off chance it is sick, you have followed proper protocol procedures and have protected the rest of your collection. I would not send him anywhere unless you are sending him back and relinquishing ownership.

If however you do keep him, isolate him, practice proper QT practices and see if de-stressing him works. If he dies, refrigerate the corpse and ask the breeder to pay for the necropsy.