No it’s not, snakes aren’t very bright but unless it’s starving (which that snake clearly isn’t) a captive born/bred snake isn’t likely going to eat anything it’s not used to. Dogs are way more likely to attack than a pet snake.
The series is fantastic but it does get quite heavy in a lot of ways. Very heavy on the ways people and societies are shitty to each other, but the central theme of it really is compassion.
The Lies of Locke Lamora would make a fantastic show/movie if done well, and I feel like the vast majority of it is pretty screen-friendly. Basically just some minor cgi for the scorpion-hawk and Falselight and you’re good.