Do I earn the same Miles Accelerator bonus regardless of the fare type?

Yes, any Skywards Miles you earn by opting in to Miles Accelerator are the same regardless of the fare type you purchase.

Related questions

How does Miles Accelerator work?
Why do I have to opt in every time Miles Accelerator list is updated?
Will Miles Accelerator bonus Miles be offered in addition to other bonus Miles I might earn on a flight?