"There wasn't much we could really do with SCH"

[ItMe]

[...] and doesn't change the fact that Sage is just straight up better.

I keep hearing this, but I don't understand.
Can you explain to me where this notion is coming from?

I understand why so many people can already be claiming one class is better when
-- we know so, so little about SCH's kit
-- we have little to no idea what the potentcies on Sages revealed abilities will actually mean in the new expac (especially because of the stat squish also causing a potency rework to jive with the new backend math).

It feels like I've missed something everyone else knows about.
How/why is everyone saying Sage is "straight up better?"