If you do recognize the validity of such behavior, then why run to quickly label and generalize it as being negative? Expecting people to not proactively communicate in this extremely non-transparent process is ridiculous, especially when their future is at stake in this tremendously costly and depleting process. If anything the way communication is handled by ADCOMs with applicants is more than 2 standard deviations from expected norms. We spend a tremendous amount of time and money on applications, last minute flights, and are often give no real feedback or advising, instead just being shut-down by schools. This is not to say our success isn't our responsibility, but if you were in our shoes try to tell me you wouldn't be feeling similarly to how applicants do or considering attempting the same thing applicants do, especially given how more insanely competitive this process gets every year?
Schools also have all sorts of ways of handling applicant decisions and waitlists that are all-over the place. Communicating with them is the gateway to being informed in most reasonable scenarios, and showing initiative doesn't make a person "impatient". We give ADCOMs months and months to make decisions, one or a few phone calls is hardly a bad thing. If ADCOMs are too busy to handle that, then have someone else who can handle it do so.
I can't feel but feel there is a convenient disconnect between ADCOMs and applicants, which makes the process way easier for ADCOMs, but way harsher and more unforgiving for applicants.