Seems like they're experimenting!
As an AmEx insider mentioned that the Platinum Charge fees are about to rise as well which we don't see here.
MRCC looks good for first year but would be hard to continue with those fees for the second year.
Plat Travel looks like a good option since now we get 12K MR points right after joining, which should get people to learn more about the redemption.
And with more points, hopefully, they will add more options and places to redeem the points for!