I think the problem is that many users could not get past the invitation to use Tasks because they had increased their text size in preferences and EN was not programmed to allow for large text and users could not get to the controls to move past the welcome to Tasks screens.
The trick is to reduce your text size so that, when you launch Evernote, you can see the commands which allow you to get access to your notes without accepting Tasks.
I’m surprised that EN has not taken into account the possibility of increased text sizes when programming the announcement of Tasks. This has lead to many users wasting a lot of time trying to access their notes.