If the issue led to termination it's at least conceivable that it's a little more complicated than the staffer is letting on. If the person took six 5-minute breaks and got their tasks accomplished, no problem. But if they took 6 20-minute bathroom breaks, that's 2 hours out of a day in the bathroom, on a daily basis. That's an employee who's away from their workstation fully 1/4 of their day. Are they really able to…
So what? Reasonable accommodation has to include things like this, or the flexibility for the employee to work an extra hour and finish up their duties for the time they missed.
Otherwise, it's not accommodation at all.
And the idea that they're "coasting" when they're working 75% of the time is absolutely ludicrous. Does that mean French workers are all coasting, because they have a 7-hour work day?