eSports and streaming are two different worlds.
eSports is competitive gaming, so those with the best stats are more likely to attract bona fide sponsors.
Teams have to compete in international leagues and constantly earn good placements to appeal to sponsors.
The benefits may come in the form of financial, hardware support, etc.
Streamer sponsorships often target popular streamers and beginners to some extent.
If you are a streamer, you don’t have to possess great stats to secure a deal.
Quality content, consistency, and a big following should be good enough.