>>1480307 (1860?)

I don't recall Tolkien being outspoken publically against another countries leadership to the extent that Rowling, King, and others are.

So just akin to Q dropping crumbs, Rowlings tweets or other comms may serve the same purpose. Speculation, sure. Any proof, likely none at this time, but she does appear to be rather vocal.

https://www.thethings.com/15-hidden-messages-in-harry-potter-most-potterheads-are-clueless-about/

and yes she does hide messages.