"Wait a few years of valorant being out and they'll start dominating everyone"
This statement is simply incorrect. Same thing was said about Chinese teams in CS 1.6 and CS:GO , and they had max 2 competitive teams (placing in top20 ranking) over 15 years (with some breaks), called wNv Gaming and Tyloo. They won 3 S-tiers events over 20 years.... combined ..... even though there was so much hype behind them
It is already proven that Chinese teams usually have a hard time in tactical first-person shooters, even when they are on the same level playing field (which was the case with CounterStrike 1.6 for a long time).
There are small chances that things will change in Valorant, since the same fundamentals are usually applied.
China should definitely open their competitive scene and get some slots, but I do tend to agree that 3 is too much. However, it is understandable since this is a Tencent owned company.. You can't blame them for forcing it a little bit.
Either way, competitive integrity is not something that Riot prioritized when creating the Partnership system... so it should not come now as a surprise