Well, do buldooze then, if you have chance
I would really like to know, if there's anything particular to say to this aspect, especially if that was from Eru himself.
However, indeed what you quoted is what I had in mind: the "amending the errors of old", especially in this context with might of Valar put in contrast to the humbleness of the Wizards, speaks for not using the power by the Valar when it came to the Elves and the war and that's how I have always understood it. Of course the situation was a little different there when Melkor, one of the Valar himself was reigning there, but that was just the time when Valar had to adapt to the fact that the world is no longer a battlefield of gods but that there are also different subtler, yet free beings emerging.