That's actually not true, trench and dragonfruit don't work in the VIP mine so nobody has any advantage over others.
But to answer your question, I highly doubt it
The problem with Hephaestus is that it takes so long that I was able to do all the other rebirths before I got to mining lvl 75. And yes, I did A LOT of mining. So I don't think its a good idea to aim for it as your second rebirth.
Also this
I literally never PVP on this server, or any server to be honest, but these all seem like really good ideas. I’d love to see some (if not all) of these ideas implemented. They’re clearly well thought out and I agree the volcano needs a rebalance.
I recently made a suggestion about adding a "decapitation" enchant to increase mob head drops, check it out by clicking here out and upvote if you like the idea!