Not sure where your getting that information from. Since April 1st, 2020 according to the Clan Wars section of Sharkbrew:
Clan Rage is 19W / 2L in F2P preps.
Apex is 8W / 4L in F2P preps.
3 of Apex's losses were to Clan Rage. Apex has had 5 F2P preps since the end of the Sharkbrew F2P tourny(including the 2v2 event), while Clan Rage has had 12. Sadly, I think the sharks have given up on being #1 F2P ever since we gave them a 3-0 pummeling in the SB tourny finals. Must have been pretty demoralizing.