I disagree with them saying a 30 gallon fish tank is good for hatchlings.. it most definitely is not.

offering a hide box on only the warm side of the cage isn't the best either.. two or more for those snakes that need them.

Suggesting pig blankets or whelping pads for heat sources is just plain not good.. I highly doubt those can be controlled temp-wise as finely as something made for reptiles.. like flexwatt.

for substrate suggesting indoor/outdoor carpet.. that stuff is terrible to clean, and is perfect for growing bacteria. Also they suggest against 'particulate substrates' like what.. aspen and cypress mulch? Some boids like sand boas NEED particulate substrates.