Really sad to hear that... This sounds to me like politician answer and not scientific... (rem) function is simple math and you should know that... Just to warn you : One mistake may lead to another one, and that to yet another, ... , and so on... If you don't want to update it's your business anyway, but don't accuse than someone else when and if something fails despite your program looks good and you want to implement it without any failure... Mistake was made by programming badly by you or someone else and if you want to avoid lacks in job, mistakes have to be treated as soon as possible by the time they were spot and reported... I for sure can't guarantee that my job is perfectly done and that I don't make mistakes, but I am behaving to be less stubborn person and I am trying to be flexible as much as possible in situations they occur to me... For sure my advantage is the fact that I am persistent in efforts to make things as much good and well as possible and that means that I treat mistakes they should be treated and I correct them in a workflow... I want that everyone is satisfied with consequences his/her duty brings and that job done by me or someone else should be satisfactory beneficial and as much as possible done without mistakes... This all tells me that I should trust rather something that is based on proofs and facts and not just arguments that defend and censor errors and bad practice made in past... To me things should always be better than they were no matter where and in what field of profession you look at... But that's just me, and yes I'll make changes to my life and profession especially when I see that something is wrong no matter there are arguments that it's not practical or profession ethical like you stated... Like no one can stop you not to react on the facts that something should be corrected, no one can stop me to correct thing I think that are wrong and this is the one case of such situation...
Stay well and be present in challenges they are to come yet and avoid to convince people in things you are unsure they are correct if you don't have arguments based on proofs that are already considered as natural universal facts and that are unnecessary to be tested for their validness...