Not disagreeing with you on that school of thought. AHA sets guidelines on ACLS we are just wee paramedics.If it shows to have a much better outcome on neurological status of code patient and thus their ability to walk out of a hospital then I am all for it.
Back in medic school I was scared to death of weight based medications. Now that I am in the critical care field I am much more comfortable with it and an advocate for it.
An epi preload is one of the easiest medications to give a weight based dose. You want 0.5mg? Just give 5mL. You want 0.2mg? Just give 2mL.
A wise man once told me in EMT school to KISS. Then when I got into paramedic school and critical thinking classes that same man said KISS is something we tell you to avoid you from thinking critically.