I can only speak for my own testing, but every time I fought Chomp, Lil' Bling was stunned and the script swapped to my 3rd slot pet instead of waiting for the stun to fall off. I had to add standby, YMMV.
Please also note that using ability slot instead of ID is strongly vulnerable to break when they reorder abilities or when the automatic substitution pet this site offers has the abilities in different slots.
The names in abilities in scripts are just a fallback. As I’m playing in German i replace them with shorter English strings when I post scripts. Those strings surely never are right, yet scripts still work.
That script, ability(Curse of Doom:218) ability(Haunt:652) ability(Make it Rain:985) ability(Inflation:1002) change(next) and ability(curse:218) ability(haunt:652) ability(rain:985) ability(capitalism:1002) change(next) Should be 100% equivalent.
Just wanted to say thanks for this strategy and for all the others you've posted for 8.2. I'm sure a bunch of work and testing went into these and it saves everyone a ton of time when we're trying to do the quests in the new content.