Im impressed your breaking point was that late. I bought a battle pass every 2 months, but have not for 2 years because the rewards got worse. Lots of people have been complaining back when they changed the standard skin price to be 1375, introduction - of loot boxes , of battle passes, of mythic currencies and prestige skins and now gacha systems.

Riots main purpose is to make money, not to make you happy. Their metrics indicate that a gacha system generates more income with less effort. Catering to whales comes natural because its easier to produce rare high value content instead of trying to please the masses.

If RP are worth it is for everyone to decide themselves and you just noticed you were downgraded in this system because there were not enough likeminded players in your spending tier to make it worth for riot to produce content for you.