While its plenty powerful, its the effect on perceived barrier-to-entry that really posed a problem because casual players watching Commander games in passing could reasonably assume that they needed hundreds (now thousands) of dollars in Power-9 mana as table stakes, just to join the format
White has always had busted cards ever since Alpha, but for a while, it was perceived as the weakest color across all formats
It provides a real clock on a body, which is one cheaper than Warstorm Surge, and is much more copyable/recurrable
The 14 mana can also be paid to some in installments with intervening value
Set across three distinct planes, Aetherdrift pits ten teams against each other in a no-holds-barred race for the Aetherspark
Earthquake has the same buylist price as Telepathy but is $10 cheaper retail and even though there are a jillion foil quakes, theres only one 7th