I've played a few amps that don't work well with humbuckers. Mostly older amps or clones of older amps. And it's not ALL humbuckers either. The problem isn't the humbucker itself, it's the impedance mismatch between the amp and pickup(s). So it all depends on the output impedance of the pickup and the input impedance of the amp. Even on my 5E3 inspired amp that doesn't generally like humbuckers, there are some humbuckers it gets along with just fine. All that clip proves is how those particular pickups sound through that particular amp. I've never played a Dr. Z Maz, so I have no idea how it reacts to various pickups, and thus won't comment on that amp. But as a general rule, general rules are generally bad rules.
My old Maz 38 Invasion doesn't get cranked up much anymore but last Sunday I plugged my R9 w/ Wizz PAFs straight in. I cranked the master up and just sat right on top of that cab for a couple of hours letting those good vibrations rip through me. That's a tone even a blue bellied devil would like.