The Joint resolution cites two clauses in the WPA that control this action. The reporting requirement is in 5(b) and as per below.
b) War Powers Resolution Requirements
(1) Specific Statutory Authorization -- Consistent with section 8(a)(1) of the War Powers Resolution, the Congress declares that this section is intended to constitute specific statutory authorization within the meaning of section 5(b) of the War Powers Resolution.
- (b) Within sixty calendar days after a report is submitted or is required to be submitted pursuant to section 4(a)(1), whichever is earlier, the President shall terminate any use of Untied States Armed Forces with respect to which such report was submitted (or required to be submitted), unless the Congress
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- (1) has declared war or has enacted a specific authorization for such use of United States Armed Forces,
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- (2) has extended by law such sixty-day period, or
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- (3) is physically unable to meet as a result of an armed attack upon the United States. Such sixty-day period shall be extended for not more than an additional thirty days if the President determines and certifies to the Congress in writing that unavoidable military necessity respecting the safety of United States Armed Forces requires the continued use of such armed forces in the course of bringing about a prompt removal of such forces.
With the statutory authority given by the joint resolution, the action takes on the same context that a declaration of war would hold. IOW the 60 day reports are not required.
Section 3 of the War Powers Resolution requires the President "in every possible instance" to consult with Congress before introducing U.S. armed forces into situations of hostilities and imminent hostilities,
and to continue consultations as long as the armed forces remain.
The "Exactly" was in reference to the fact that the use of military is completely constitutional.