Fair enough. I would recommend you check out rules/redirect-rules/progressive-profiling at master · auth0/rules · GitHub Explanation there is more concise and clear on how to implement. Only confusing bit is the webtask since you can’t create new ones anymore. However as mentioned in the docs webtask is just one way to host and tbh what that webtask does can simply be just part of your current application.
For what it is worth I just recreated the webtask as a simple node webapp with minimal change to the code and deployed it to Heroku. Please refer to my sample here GitHub - ashishdasnurkar/update-profile-website: a simple node app that implements progressive profiling and README for step by step instructions if you are interested.