When I was a child many years ago, I used to attend a Pentecostal service alongside Mass for a brief while. So I think I’m safe in answering.
Some Protestants would argue that the Bible doesn’t explicitly forbid ritual, but it’s very implicit almost to the point of being explicit. They would say this is more the case in the New Testament than the Old Testament. When condemned by the Pharisees for healing the sick on the Sabbath, Jesus responded, “The Sabbath was made for man, not man for the Sabbath” (Mark 2:27). What the Pharisees had done was that they followed the Law harshly; they imposed the Law on others simply for the sake of it being imposed. Indeed, Jesus says in another Gospel that “They tie up heavy loads and put them on men’s shoulders, but they themselves are not willing to lift a finger to move them” (Matthew 23:3). What we find in Scripture is that an emerging “revolution” taking place - the Old Testament was filled with ritual and external practices and we find in the New Testament that what really matters is what is in the heart. Peter had the famous vision that allowed him to not keep the dietary laws, for the Gospels say: “What goes into a man’s mouth does not make him ‘unclean,’ but what comes out of his mouth, that is what makes him 'unclean’” (Matthew 15:11).
Incidentally, I think the Protestants are right on this one. However, their criticism is more applicable to Traditionalist Catholicism than Catholicism in general. I always had one problem with Traditionalist Spirituality, and that was their primary focus on external piety (chapel veils, strict dress codes, genuflection, etc). Whilst I was a Catholic, one man recommended I should try the TLM. My response was that I didn’t want to go because of all the unnecessary dogmas and rules, that do not result in the refinement of your character but instead on how you are perceived in the sight of others. So the Protestants are correct in this regard, although it’s more appropriate to refer to Traditionalist spirituality than mainstream Catholicism.