I doubt SE is going to adjust old content like Eureka. I helped a friend of mine all the way from Pyros to the start of Hydatos by not being in a party with them and letting them get some tank actions and heal them. It's tedious work but I had alot of fun with my friend, I don't think everyone would go that far for someone. I was helped this way by a friend too. When I used to run Eureka alot, whenever I saw low level players in the instance I'd go around popping NMs for them/offering taxi rides/res.

I'm sorry that your friends didn't wish to go that extra mile or perhaps they didn't know