I didn’t make bronze before and I’m unlikely to after the changes. As a BA PP Amex holder I’m slightly closer to bronze, but much further from Silver. Most of my BA flying is CE/CW rewards.

I think Bronze is relatively achievable for anyone with a BA PP Amex. It could be achieved by spending £1000 on SAF, should anyone so wish!
Getting beyond that to Silver will be the challenge for most, especially if you do a lot of partner or economy flying. An EI LHR-ORK will earn ~25 NTPs. That’s 20 return flights to earn the 1000 points to bronze. This earning ratio is very similar to EIs own. Full fare transatlantic/long haul is heavily rewarded, anything else much less so.