It is funny. Most champions get criticised in some shape or form, even contenders, in MMA media given the quality of their competition but Rousey is absolutely exempt.
MMA media is, more or less, owned by Zuffa, that's why. They don't mind someone like Conor being focused on coz he's beaten fighters who have proven themselves to be legitimate fighters, so the numbers speak for themselves. Ronda however, smashes girls who have mostly decisioned far, far lesser fighters and therefore, it suggests she's being fed cans. Most MMA fans know the likes of Poirier and Mendes aren't cans. Most MMA fans, after reading a clinical breakdown of Rousey's opponents' careers, wold realise just how lowly these fighters are.