I'm not really fussed by not being on your poach list, because once MI6 is no longer an option for whatever reason, my plan is to exit Planet Bob entirely.
There are many criticisms levelled at MI6's foreign affairs- an inability to drop an issue or accept fault in anything, the constant presence of people deemed distasteful on the OWF, wearing our emotions on our sleeves. I am quite sure, however, that Chimaera secretly plotting to screw over every single ally we've ever had isn't an accusation with any credibility behind it.