Bneg my friend, as one of the idiots from the zoo who made that statement, I will say the following:
PETG Vs Acrylic, all comes down to what fittings you have, and what size tubing you are using. I have more builds running Acrylic tubing, then PETG. I have had a tight acrylic bend cause damage to the blocks instead of breaking, and I have also seen acrylic tube breaking with very little pressure. Don't think there is anything known as a foolproof solution when it comes to water cooling. Even AIOs can leak from what I have heard, does not mean people don't look for alternatives.
I guess metal tubing like copper is the best if someone has any acrylic vs PETG concerns.
Impressive video by the way.... and on a light note - you sure thats not PETG lol....
And it also comes down to cost. Acrylic tubing is nearly 3 times (technically 2.8 times) more expensive than PETG tubing over here in the USA.
It is $29.95 for one 12 pack of 36" Primochill PETG tubing. It is $83.40 for twelve 1-packs of 36" Primochill acrylic tubing (No one sells Primochill 36" acrylic tubing in packs). That is a pretty massive difference. Going the PETG route gives you more flexibility for screwing up a bend. Not to mention because of its slightly lower heat threshold, it is easier to fix a mis-bend of the tube.
In the end, unless you want to throw money down the drain, or are using fittings where only acrylic tubing is made for that ID, PETG is pretty much a no brainer. They are both so similar that in the end, just go with what is cheaper. Kinda like RAM.
And I picked those two products for easy comparison between the two tube types in terms of cost.