I don’t think that Romney considers legal immigration of equal or greater importance than illegal immigration and border security, but I do think he’s mindful that once you go forward with kicking the illegals out and making them “get in line” to apply legally (as he mentioned in the 2nd debate), you may have a problem—in the short term—filling a lot of low-paying jobs that they’d be leaving (i.e. the ones that many Americans might consider undesirable). That’s where improvements in legal immigration might be helpful so as to not cause potential economic problems.
Could be.