We’ll just end up in a debate about the interpretation of those scriptures; the relevant point is that Luther conceded the point, causing him to start removing books from the bible. The Old Testament books stayed out of Protestant bibles since then, although Luther removed portions of Daniel and Esther. The New Testament portions were restored, once Protestant apologists offered different interpretations.
Luther removed nothing from the NT. His first edition translation included ALL of accepted NT canon. His questions about canon were not unusual for the time - some years passed before the Catholic Church made a definite and binding answer (for Catholics) on canon.
The problem with Purgatory, etc is that they are not taught in either Old or New, and multiple passages in both contradict the idea. Since Purgatory is an idea as significant as Hell, the absence is deafening.