From what I understand, Saint Pius V was considering painting over the Sistine Chapel, but didn’t. While I’m certainly not a fan of those particular paintings, I defer my opinion to the much more competent authority and judgment of the great Saint and Pope and to all of his divinely appointed and guided successors.
This attitude exemplifies a bit the extremes to which some SVs have taken it in over-reaction to the R&R, to the papalotry of which many SVs have been accused by R&R, with some justification here ... as if there's any protection by the Holy Spirit whatsoever over minor prudential judgments down to how the Popes have decided to decorate the Vatican. Be careful that such exaggerations don't actually undermine and delegitimize the other (legitimate) claims made by SVs. We've had many delinquent, worldly, and even perverted popes in the history of the Church. And if some Popes haven't corrected these things, for the good/holy ones, it's probably because they had many higher priorities (bigger fish to fry) just battling against the Church's enemies and dealing with issues in the Church, whereas the less good/holy ones simply didn't care. God's protection over their dogma and doctrine is made even more manifest against the backdrop of these popes, since even despite all these types, the Holy Ghost prevented them from corrupting dogma, doctrine, and moral teaching. There's also a bit of a 1950s-ist mentality among some SVs, where everything was great in the Church, close to the ideal, until some magical moment in, perhaps 1962. Before that magical moment, all approved theology manuals were 100% orthodox and after that they all became worthless, even though it was the same men producting these works both before and after that time. I've butted heads with some who felt that it was impious to question anything that had a pre-1960s
imprimatur on it, where he was basically implying that these things were protected by some kind of infallibility.
So, just be careful that in exaggerating the claims of your position you aren't actually undermining its core principles, or at least rendering them less credible and persuasive. Just imagine if SSPX put up a new building near you, and the walls were covered with depictions of genitalia and various homo-erotic art. So, if that would be wrong ... and it would be ... it doesn't make it less wrong just because some Pope did it. Most SVs also rejected the Pius XII Holy Week changes (the CMRI being the major exception) and think that Pope certainly made some prudential judgments (at least) where it comes to the acceptance / endorsement of those proto-Modernist changes. So if that's the case, what protection is there over their choice of art at the Vatican? We should also then defer our opion regarding the "judgment" of the "divinely appointed successors" of St. Peter about whether they should have mistresses and father illegitimate children?