Cloudflare, in general, is a massive centralization point for the entire internet. Picking a technology here and there and worrying about the amount of centralization, isn't that meaningful.
Here is another good one for you to ponder since you're new with blockchain... most bitcoin mining pools sit behind CF too. It doesn't mean that bitcoin is centralized though.
The reality of the situation is that while yes... there are a lot of dependencies on CF, that is not the same as centralization. The dependencies could change and give up what CF offers, or they could just route around CF to other similar services. There might be brief outages here and there, but it doesn't negate the core security of these protocols.
Here is another good one for you to ponder since you're new with blockchain... most bitcoin mining pools sit behind CF too. It doesn't mean that bitcoin is centralized though.
The reality of the situation is that while yes... there are a lot of dependencies on CF, that is not the same as centralization. The dependencies could change and give up what CF offers, or they could just route around CF to other similar services. There might be brief outages here and there, but it doesn't negate the core security of these protocols.