Make Steel Path and Arbis unlockable by beating the BASE star chart again.

Since Angels of the Zariman, the questing time and nodes required to unlock Steel Path and Arbitrations have exploded. Telling my new-player friends they have to finish every single new quest and do all their nodes in order to farm endo efficiently, or unlock Galvanized mods, or use weapon arcanes has been a mild morale killer. Paradoxically, non-SP 1999 even feels tuned around SP/Arbi-locked equipment. This issue can go unnoticed by veteran players, because we unlocked SP before these updates even released.

Frankly, this game is easy. Slicing through four players' worth of enemies solo on SP is just more fun once you have the power to do it. Especially considering the wave of Destiny players making the jump right now, it'd be better to make the "hard" content accessible just by finishing the base star chart.

Edit: Thank you to those of you who've discussed below, both pro and con. Other concerns include SP requirements increasing with every major update; SP Circuit Incarnons being locked away; and low player counts on late-game, non-SP nodes.

Edit 2: The most common sentiment in the comments, even among those who disagree with me about SP, seems to be: "Unlock Arbitrations after Lua." That makes a ton of sense to me and seems like a "minimum viable solution" that the devs could implement. Thanks for your thoughts!