I'm absolutely puzzled.
A320 is slow to pick up a dropped wing by itself, but with full stick deflection in normal law, it will try to give you 15 deg/sec roll and it will do it without hesitation and with as much aileron and spoiler deflection as needed. So if you have gradually fed stick up to full, with all ELACs, SECs, control surfaces and hyd operative, then your "scarebus" was rolling against full deflection of ailerons and all four roll spoilers in conditions that were not
Spoooooky!
Oh and sideslip is easy to do on A320, as long as you remember to let the stick go. But it's useless above 15kt because you run out of bank, and decrab is a piece of cake, so who needs the sideslip, anyway?