As an MBP OM and someone whose worked in the DC for a decade as both team member and OM, 100% untrue. OMs won't coach you if you're at least pulling an 80%.
But if you come to my department dogging it repeatedly I will coach the shit out of you and move to a CA if necessary. Yeah flexing out sucks but you're still being paid to work and your hours are coming out of my budget you better be putting some effort in.