The operational bulletin is an internal document that has been shared. It says right at the top: "This section contains policy, procedures and guidance used by IRCC staff."
Yes, it also says "It is posted on the department’s website as a courtesy to stakeholders." 'Courtesy' does not mean that it's a good idea for you to use the term.
So - again,
in my opinion, this provides instructions to IRCC staff what they can and cannot do when rejecting an application. If you do not understand this, you do not have the requisite experience in law or administration to understand the context.
Because of dual intent, they cannot write their reason for refusal that "Refusing because the applicant has applied for PR and intends to remain in Canada." That
will be subject to challenge by appeal, and it will be lost on appeal.
The part to pay attention to is this: "The possibility that an applicant for temporary residence may, at some point in the future, be approved for permanent residence
does not absolve the individual from meeting the requirements of a temporary resident, specifically the requirement to leave Canada at the end of the period authorized for their stay".
In other words, this means: do not refuse because they have applied to be a permanent resident. Refuse because of the temporary resident requirements. (Further down there are instructions on what things to consider, i.e. what things are acceptable reasons for refusal).
This is very clear guidance to officers about how to refuse; it is not at all a suggestion that because the concept exists that it is a good idea to raise it. (The rest of the document does give good info on how to demonstrate that you will leave Canada when required)
Now, note: I am
not claiming that dual intent is not a real thing, nor that some do not get approved, nor that IRCC officers are evil, etc.
But I am saying using a lawyerly term intended for internal use is going to telegraph that the priority and intent is to come to Canada to remain in Canada. That impression will, if anything, not help your application, but harm it. Leave its use to lawyers.
My opinion only. If you wish to ask a lawyer, by all means.
If you'd like an analogy (an imperfect one as with all analogies): roughly speaking, you do have a right to remain silent with the police - but if a police officer addresses you and before they even ask a question you say "I have the right to remain silent", it's going to telegraph that you feel guilty. (Warning, partly because that phrasing is clearly copped from USA tv shows and apart from telegraphing potential guilt, shows you are informed by tv shows and don't know Canadian legal context...)