Likely more to do with communication to customers on sale pages and such, and consequently with customer protection laws. They likely can’t advertise it as a discounted price for example in the same way a seasonal sale would be signposted, I would imagine at least.
I think it’s meant to convey that it’s not a temporary deal on the old price, but a permanent new price point.
What is the effective difference? It’s not like they’re offering long term contracts.
Likely more to do with communication to customers on sale pages and such, and consequently with customer protection laws. They likely can’t advertise it as a discounted price for example in the same way a seasonal sale would be signposted, I would imagine at least.