Yes - Meghan has used this tactic a lot. I remember she said something like 'They called Katherine 'Waity Katy', and that's so mean!'. So, you disingenuously repeat the insult and then, doe eyes wide, you pretend you think it's just awful. I've seen this done IRL and it's a tactic which successfully takes in some people. And they can't touch you for it - you didn't say anything mean, did you? You were just criticising other's nasty remarks....yeah, right.
Also - her remark in the OW interview, after throwing shade (as the SS like to say) on Katherine, Meghan said earnestly 'But Katherine is a good person'. Which had just the opposite implication. The subtext was: 'Even when I've been bullied and mistreated by her, I can still be the bigger person'.
So, so transparent to anyone with an ounce of perception, but sadly these sneaky little tricks do work with some of her audience.