After 25 years of staying on-site at WDW, Disney should know by now that I'm a Disneyholic vacationer and not a threat to anyone. Heck, even the TSA knows I'm okay, since I have TSA Pre-check.
But, that being said, if they're looking for weapons, for example, shouldn't they be opening all the bureau drawers and closed suitcases? Yet they don't do this.
And if they're concerned about human trafficking, which is apparently such a big problem in Orlando that there are signs about it in the ladies' room stalls at MCO, then a mere housekeeping visit while the occupants aren't in the room shouldn't be sufficient. And, btw, if you do have housekeeping come to the room while you're not in it, then there's no additional security check. So what's the point?
And, yes, I've been disturbed several times while trying to nap, although, fortunately, I've never been in the shower when security showed up. The security people who do come never make any effort to identify themselves. It's very intrusive and I'm always relieved when I get back to the room and it's been made up, since this means (usually) that no one else is going to bother me for the rest of the day.