For me it's phase 3. No matter how many times I do the Meta and get the message of "Event successful" the Tier 3 upgrade ist not counted and hence blocking the achievement.
Great article - funny and interesting!
In general I really like this new communication style by ANET, albeit few years overdue.
But better late than never 😉
Keep up this great work and I guess we have lot of reasons to look forward to EoD.