What about elite status bonuses?
I've written about this in detail here - the upshot is that BA Gold and The Frozen North Gold MVP 75k status levels require a similar measure of flying, however a BA Gold 'just' gets a 100 percent reward, whereas a Gold Country Gold MVP 75k part gets 125% reward (in addition to an additional 50,000 Gold country Miles when they requalify, yet I'll ignore that here to keep things simple.).

MVP Gold 75K individuals, therefore, receive 375% of flown Miles on BA's least expensive Business Class charges, while BA Golds on a similar flight would get 250% of flown Miles.

Using a similar Prague-San Francisco model as above then, The Frozen North Gold MVP 75k would earn a staggering 45,000 Miles, worth ~£750. ABA Gold would earn 30,000 Avios, worth ~£300.

British Airways Cancellation Policy for COVID
The British Airways cancellation policy in response to the COVID-19 pandemic permits you to drop the following tickets and guarantee a voucher (voucher credit) which will be substantial for a year, as explained underneath.

Trips with a fulfillment date of September 30, 2022, will be stretched out by 1 year after you apply for the voucher.
Your voucher will be messaged to you.
Your existing booking will be dropped automatically.
You should utilize your voucher to finish your outing no later than September 30, 2023.
You can make changes to your flight date and additionally destination.
You won't be charged for canceling your existing flight or rebooking later.
You should notwithstanding, pay the passage distinction between the old and new admissions.
Trips booked before June 7, 2022, with a fulfillment date of September 30, 2022, can be changed once without incurring any charges, yet the distinction in tolls should be paid. The resulting changes (after September 30, 2022) will be charged.
Note. To drop a ticket bought from a travel planner, reach them straightforwardly.