Yes, it’s the right move for now. After the Midterms, POTUS can step up the pressure to fund the Wall. He actually has the authority and the budget inside the military to go ahead with the Wall but he wants Congress to come along with him. So we’ll see after the Midterms how Congress responds.
The American people want the Wall so it’s a mystery why GOP members are not running on the Wall issue.
Technically, I don’t believe a “continuing resolution” is a spending or budget bill, so Trump has kept his word.