"Beyst self sabotages her singles" is such a bad excuse
She sends them to radio, promotes them at the Superbowl, VMAs, BET Awards, etc, releases expensive music videos. The general public, who determine single success, just don't care about her anymore. Also ratings poison.
Only being played on urban/rhythmic radio in the US (she gets next to zero international airplay since 2011) is pathetic for an ex-global superstar like Beyonce.
Considering she'll steal a large chunk of your publishing royalties, and US radio doesn't give airplay royalties (zero royalties from non-existent international airplay), "I might get your song played on the radio station" is very poor advertising for prospective songwriters.
Rihanna's out here getting #1s left and right, but no really cares for her. I don't see the point in "hit" songs other than promotion. Lemonade has tripled Anti's albums sales in the US and the FTW doubled the AWT gross in half the amount shows.
It's not..considering majority of her music isn't meant to be mainstream nor is it mainstream friendly which is what majority of the international (i'm assuming by this you mean white/pop? considering she is most definitely played on international urban radio) markets consist of (dance/pop music)
All she said was that she can get your song played on the radio. And she didn't lie.
Does she have electronic songs to dance to?