Again, I show manga evidence. Tsunade mentioning that Madara knows Wood Release means nothing because anyone could have made that remark. You forget Harishima died at a young age, and that he is Tsunade's grandfather, so she would have been really young during the times Harishima and Madara fought. Of course she would not be in a situation where she would see Harishima's all out, map-altering Wood Release. You're bending a few words on the manga to your taste, and ignore the timeline and the more direct evidence against it.