True, works for some that way, but certainly not for those that need to apply for PRTD (i.e. do not have access to USA). The risk even at border remains they could start the 44(1) process. Presumabliy also border guards have access to more info than they did in the past (absences from Canada), etc. But your point taken.
My main point above though was this:
@VJ@1981 was writing this up while leaving out the MOST IMPORTANT POINT of the question, which is that they are travelling to Canada only (effectively) to apply for the PR card and then intend to leave. And since days in Canada is barely over the required number, that means in due course will fall out of compliance and then be abroad with an expired card.
This is a significant - material - omission. I'm not trying to accuse
@VJ@1981 of anything, just noting that if one leaves out the important and signfiicant part of the story, you can more or less consider that any experience sharing/basic advice is useless.
[They may have brought this up in different thnreads, I don't know, i don't read all of them. And if I've missed something, meaculpa.]