At least enable a configuration option, so people who don't like it don't have to use it.

¿But is there any side effect of having the task selected just after its creations?

If you are adding several tasks, you still can add a new one even if the one you added just before is selected. And having the last one always selected allows you to quickly add information that is missing and you did not add, e.g.:
- You want to add the task "call my mom ^tomorrow"
- You forget "^tomorrow" and you only add "call my mom"
- The task is already selected, so you can quickly set the due date: you type "d" then "tomorrow".

I'm not sure if this is the right solution or not, but I think so. Here is the problem, and it's a HUGE one for me: All too often I add a task but want to add a note, particularly a url address. So I add the task using keyboard shortcuts, but then I have to scroll through to find the newly-added task and then add the note. Very time consuming!

One problem with this is that your new task may not even be in the same list that you're in. If that the case, it can't be selected because it's in a list that you're not in at the moment, so it's not on the screen.

Also, if you want to edit the details of a newly created task, the alert at the top of the screen includes a link directly to that task. I know the original post requested a way to not have to use the mouse, but I don't know of another way the developers could do it.