I've gone away, read about it and had a think. I'm actually feeling very depressed. I feel, I'm going to be one of the worst affected by these changes.
I've been playing since 2017. I have spent some money, but not a great amount in that time frame. I specialise in GAC, and it is my priority. I'm at 12 million and I probably surf around the middle of Kyber 2. I'm always one of the lowest 3 GP accounts in my bracket and probably the lowest around 50% of the time. Though that may change a little as I've put on a bit of GP recently.
I have a large variety of teams that I play in GAC. Outside of the newest eras I have most teams at relic. However, they're at the relic that is needed to do the job. For example, my Old Batch and OG Imp Troopers don't need to be much more than relic 3. So, nearly all my of teams are between relic 3 & 7. I find taking characters to 8 & especially 9 difficult.
These changes will literally smack me down. I will no longer be using my skill and knowledge of match ups. It will rely heavily on just looking at relic levels. I enjoy the challenge of playing accounts that are 13/14 million GP. Now, GP will be king again. This is not an environment I want to play or will enjoy playing.
Effectively, 'Skill Points' won't be accurate anymore (you can argue it never was). Size will be king. I don't think there's ever been a suggested change that has affected my mind so negatively.