Just to be clear, when I play I grab all of the loot enhancing royalty talents that Vagrant recommends in his guide. Personally, I quite enjoy the playstyle of investing early for better drops over time.
The issue I have is specifically with the Royalty Potion drops. The frequency of Royalty Potion drops feels quite high to me (at least with high Power Balance and things like Loot Hoarding). This makes the cost of the “invest early for payoff later” strategy feel – at least to me – quite minimal, because it doesn’t feel like it takes all that long to get enough Royalty potions to recoup my investment.
I personally like the “invest early for payoff later” strategy and I want it to be viable. However, ideally there should be other viable strategies as well. (I am not saying that every possible way to spend Royalty points should be good, but there ideally there should be trade-offs between competing strategies.)
If Royalty Potions were less common (for players with the royalty point talents in question) then competing strategies such as “strengthen your creatures to go deeper, sooner” would be more attractive in comparison.