Revisit an old architecture decision

Help me revisit an old architecture decision.
Inputs: decision; since then.

1. Reconstruct the conditions behind the original decision.
2. compare alternatives against new evidence.
3. recommend retaining, testing or replacing it with review triggers.

Deliver: Verdict, Assumptions then and now, What is really hurting, Options, Recommendation and next step, Draft ADR update.
Clarify critical gaps, separate facts from assumptions, and do not invent data, citations or completed actions.

My material: [fill in here]

Before you start

Provide decision; since then.