Just to put these contract extensions in perspective a bit, Google tells me the average cost per WAR this FA season is about $5.5 million.
Riley, 6.5 WAR in 2022 has an AAV of $21.2m. Based upon FA cost per WAR, he needs 3.85 WAR per season to match his salary.
Olson, 3.4 WAR - $21m - 3.8 WAR
Acuna, 2.8 WAR - $12.5m - 2.3 WAR
Strider, 3.7 WAR - $12.5m - 2.3 WAR
Murphy, 3.7 WAR - $12.17m - 2.2 WAR
Harris, 5.3 WAR - $9m - 1.6 WAR
Albies, .8 WAR - $5m - .9 WAR
Barring injury (like Albies and Acuna have already had) it is hard to imagine these guys not living up to the expected WAR.
If this thing has to be blown up at some point in the future, hard to see these contracts not bringing back high end prospects.
This also sort of cries out for considering giving Albies a new extension.