Hello; In addition to the previous post another consideration could be that the center of gravity might be changed. May not make a difference in a setup balance, but another reason not to have a tank edge outside the footprint of a stand.
If you have a pressing need to use this stand and tank combo, consider this. Cut a piece of 3/4 inch thick plywood to match the bottom dimensions of the tank. Center the plywood on the stand and you should have a 3/8 inch overhang on the front and the back. This is still not ideal and could allow some potential stress to the tank and maybe a leak. It would reduce the out of balance to more of a degree, but i still do not like to have a tank foootprint outside the stand footprint.
I would not use this stand with the tank described. Have i done such things and gotten away with it? Yes; but not always.
Good luck