To the contrary, there has to be central management of the Reserve SIP to ensure priorities are observed. Otherwise, the Buckshot Fusiliers will recruit 75 more basketweavers, despite there being no requirement. With limited resources available to train new soldiers, there must be priorities set.
That unit is in a somewhat unique situation. That said, establishments are not fully funded; that a unit grew in size from Platoon to Company does not imply that there was any overall growth in the strength of the Reserves - so to grow one unit, others would have to be reduced in strength.
Once again, the oversized footprint of the Army Reserve does it no favours. A ruthless culling of unit HQs to provide fewer HQs commanding larger sub-units would be the logical way to go; does Montreal (& area) truly need Bn HQs for the CGG, RHC, RMR, FMR, RdeM, and two Bns of R22eR - that's seven LCols & associated staffs to command around 1000 infantrymen? Sounds more like two Bn HQs and seven or eight companies of trained soldiers, plus a Bde level depot to train the soldiers up to DP1.