Sforno on Numbers 11:22/ספורנו על במדבר י״א:כ״ב

1At any rate, הצאן ובקר ישחט להם ומצא להם? how will that suffice to assuage their complaints, seeing that what they are really asking for is only in order to provoke, as pointed out in Psalms 78,18 וינסו א-ל בלבבם, “they provoked G’d in their hearts.” No doubt, just as they provoked, tested Your patience with this, they will do this with other foods, for no valid reason. The problem is that You will not deprive them of their freedom of will, as we know from the axiom “all is within the power of heaven except control of who will possess reverence for G’d.” (B’rachot 33).