Given that the Catholic Church proclaims that membership in Masonry is prohibited and those who participate are in a state of grave sin, I personally would think they should tear down those decorations but it's not up to me alas.
Yeah but you have a different paradigm regarding what the RC teaches and represents. As do I. We obviously think that the RC has made steps towards a materialistic/masonic worldview when they accepted Thomism and Absolute Divine Simplicity as normative (although not normative enough to correct the Eastern Uniates), whereas most Roman Catholics have a much vaguer perception of what the Church and Church dogma is, and view the larger institution with all its quirks and contradictions as the historical vehicle of Christianity.
Roman Catholics removing masonic imagery wouldn't actually make them Orthodox, so it's not really a good path to take to tell them "that's it". If you really wanted to root out their mistakes from an Orthodox perspective, you'd have to tear down both ecclesiology and epistemology and significant portions of the dogmatic canon. Orthodox don't actually believe that any "good Roman Catholicism" exists, because it's technically all heterodox, including the RC Byzantine Palamists, because their dogma and ecclesiology don't actually cohere.
You either understand the issue with RC dogma or you don't, and it is a bit of a rabbit hole that's not easy to stomach for many people, both intellectually and emotionally.
I do think that converting to RC is usually a sign that people want to genuinely commit to Christ, which is why I'd still view Candace's conversion as a good sign. RC doesn't have the dogmatic rigidity that would be Orthodox, but I think people in the West who want to commit to Christianity, both justified and unjustified criticisms of the Church notwithstanding, have the desire to make a real, binding commitment, even in the face of the potential for public disapproval. They don't know about Palamism, Thomism, or ecclesiological consistency, so you have to take their commitment at face value.
They want to commit to Christ in a public and unapologetic way, and RC is still the most obvious way to go for Westerners, because it's the most ancient church they are familiar with.
None of that makes Candace a mason. Even if her priest is, even if her parish is. Even if we consider her church heterodox. It is what it is.