Depends on the commute of course, but for my needs I had to get a different type of pannier, which is also an Ortlieb.
Carrying computers, keyboards, papers and all that sort of stuff with the regular back roller is, while possible, a bit of a faff. For that I have the Office bag, which is wider and has plastic reinforcements to deal with the sharp corners of today's aluminum laptops.
My commuting setup is all of my work stuff in the office bag and my spare clothes, tools, other stuff in a back roller. So I guess the back rollers are still more than valid for commuting. Just not great for laptops.
And then I occasionally see people riding with one front roller. Mounted at the front lowrider. Those people are a menace, have no regard for societal order or well being of others, and frankly should be sent on an island somewhere.