You’ve already done huge empire and religious/region-spanning runs (World Conqueror, Mare Nostrum, Master of India, One Faith and regional-specialist achievements), so aiming for Triple the Rome, Meissner Porcelain and Keep the Flame Burning builds on your strength at massive territorial/religious goals while giving you one focused colonial/trade-style target and one faith-based objective that are challenging but conceptually similar to runs you’ve completed.