One point on this - the effect of the measures you've cited here have one common feature, they REDUCE or leave unaffected the amount of cross-border travel during this pandemic.
-The student program on PGWP reduces the requirement for students to physically be present in Canada to study and be eligible for PGWP. Other student visa changes - e.g. the two-stage approval - also have the effect of reducing the need and ability of students to get visas and travel while the covid travel restrictions remain in effect. (I was an international Student and loved this measure when they announced it)
-As I understand the open work permit change, it removes the requirement for those applying for OWP based on employer offer to leave Canada and return. Again, reduces travel. (This was a special pilot project they were running to give Open work permit to Inland Spousal applications, which was set to expire for new applications, but they extended it. Great deal for Inland applicants, kudos to Ottawa!!)
-The 'pathway to PR' for asylum claimants giving exceptional service is different, as it's time-limited (applied only to those who did such exceptional service before a specific date - I think before the date of announcement), hence cannot be any effect in terms of encouraging anyone to enter Canada or travel. (To get my own PR, I worked in a Category A and had to work 1560 hrs in 365 Days, to be eligible for Express entry, this one just need 120 hours between March 13, 2020, and August 14, 2020 (5Months), Cheers!! to Ottawa this will help our brothers and sisters, to get there Permanent Resident)
This doesn't contradict most of your arguments about how difficult it is for spouses and whether government should 'do something' - but the fact that these programs (taken as a whole) reduce travel does not support your argument that 'government did something for them, they should do something for us.'
My point is: by all means pressure government to do more to speed things up and remove barriers for bona fide spouses to reunite. But this pressure can be applied and argument can be made without comparing to other changes made for those in different situations/other applicant classes - particularly since the comparisons you made don't actually support your point.