I mean that's cool and all, but I doubt this "sponsor" actually does anything other than Splatoon ads, a retweet, and not getting shut down. This was the case in TBH5, Apex, and Evo, and I doubt this will change for this event.
Call me ungrateful, but I'd much rather want Nintendo out of this and have PM back; it is the main reason why PM cannot grow due to Nintendo's interference and ludicrous policies.