Frankly, this is a terrible argument.

There are two distinct things happening here.

1. This argument blurs the line between theoretical and practical application. It fails to address the problem that even theoretically the religious position is fundamentally different from the scientific position and it posits that the practical application of the theoretical position for science is equivalent to the practical application for the religion, which is even farther apart than the theoretical in my opinion.

2. It misattributes the scientific and religious positions in the practical and theoretical stance. Theoretically science doesn't discover "truth". It provides evolving frameworks for observed phenomenon to occur. Your argument, as I understand it, functions exclusively in this area here, where it conflates the experienced lives of individuals with the theoretical underpinnings of religion. Religious theory may claim to try to explain observed phenomenon, but it is incapable of altering it's premise thus it must alter or ignore observed phenomenon to fit the theory.

This is fundamentally different. Practical application of bad "science" may also do this, but it is widely held that this isn't good science.

Finally we get to the practical/practical case, which is where a very pithy point can be made. Practically both science and religion make mistakes, and we shouldn't denigrate religion for the same practical mistakes science makes (or has made).

Which is also just an absurd argument. Just absurd. We should absolutely, 100% hold both accountable for there mistakes and roast them both in the fire. Every single thing science has done that is terrible should be hung out to dry. We should also hold every single terrible thing religion does out to dry as well.

I can't even wrap my head around how absolutely absurd the argument is that we shouldn't absolutely roast this bullshit when we see it.