Qira under jango lead

I have just started running this team jangoL, qi'ra, bossk, boba, dengar. It is a super effective team, however I don't think the synergistic bonuses are being applied correctly. Qi'ra is supposed to have + 40 potency against enemies with no debuffs. That combined with the -40% tenacity from jango's lead should be giving me a huge advantage when applying debuffs. However when qira is using her "scattering blast" special the rate at which stagger is applied to all enemies is surprisingly low. I've been in 3 battles, and I've haven't landed more than 3 staggers at a time. There isn't even supposed to be any probability involved in landing stagger in this technique, that coupled with the tenacity penalty and potency bonus should make this debuff land at a much higher rate. My qi'ra has 63% potency, +40% puts her at 103% against enemies without debuffs. Most of the enemy units aren't above 65% tenacity. With these statistics I should be landing stagger like crazy, but the rate is surprisingly low. Have the devs checked to make sure Qi'ra's bonuses are working properly under a jango lead?