I know but I didn’t want to risk it
And yes Jack did wake him up but that was more a taste of his power, it was something small with a lot of meaning rather than him just clicking his fingers and Cas reappearing. I thought it was a really clever way to handle it. I mean we already know how powerful Jack is he ripped a hole to another world before he was even born but it’s more the realisation of his powers and what he truly is capable of that’s been kept hidden and I like that.