Clearly that is just your opinion/need. For others, some way of getting your data out of the app is needed.
I have many ‘app based’ financial products, and usually you can get some sort of statement or csv file via an export.
Tymit have said that this is something they are working on and originally it was due for release for the end of February. - but for some reason has been delayed.
If you don’t need this function then you don’t need to use it. But it should be pretty easy to implement.