Hello there, and I’m sorry that your hatred for the PDF burns so brightly!
We’ve generally found that folks are split down the middle between preferring the original blog post and the PDF. One of the reasons we made the PDF was to respond to the 100+ comments we received on the initial post, in which people asked for rules clarifications and more detailed advice on how EitR interacted with numerous feats. We added some additional homebrew flourishes to flesh things out further but, like all aspects of the rule-set, they are completely optional.
Regardless, to say that we do this type of design work for profit is a bit humorous to me. While we are certainly grateful to all the folks who have chosen to pay for a copy of EitR, the profits we make off the publication are relatively meager (and certainly don’t cover the labour we put into it). In fact, any of our Itch.io funds go straight into a stash that we have dedicated to future TTRPG development. This is strictly a hobbyist endeavor, which is why everything Mammoth Island has made thus far is essentially PWYC.
After 13k+ downloads, and with Pathfinder 1E all but wrapped up, I don’t see us revisiting or revising this rule-set in the future. You’ll have to enjoy it as-is or move on. If you are looking for another source of Pathfinder homebrew content, I’d highly recommend Spheres of Power.
Take care!