There are often misrepresentations of RCM presented by Prots, and there are some arguments against Rome which should not or need not be used (call no man father, statutes, etc.) as well as things like exaggerations regarding the Inquisitions (bad enough as it was, and Prots has their share).
And there are many misrepresentations of Protestant beliefs (such as “solo” versus “sola” Scriptura) by Catholics, and many arguments for her which are specious, such as were recently covered in extensive threads, including her very basis for authenticity.
I think that when one is accustomed to walking with the Lord, apart from the props to do so, seems quite awkward at best to try to do so after the fact...and at worst as if an affront to Christ. I can understand some returning to the catholic church after once leaving...it is familiar to them. But for those who have walked with Christ to return to the rituals etc. just seems hard to imagine...so one can wonder where their salvation was actually rooted to begin with....in a church and it's dogma or the person of Christ. It does seem God will Himself have to do the sifting when all is said and done.