Again, you certainly could be right. The other point in the paper that I find interesting was the following: -
Russian authorities continue to arrest personnel associated with the Russian defense industrial base (DIB) likely to justify crackdowns and further conceal DIB activities. The Russian Federal Security Service (FSB) announced on April 22 that it arrested the deputy head of the testing laboratory at the Promtekhnologiya weapons plant in Moscow on suspicion of treason.[28] The FSB did not provide additional details about the alleged treasonous act. The Promtekhnologiya plant participates in the development and modernization of high-tech weapons. The Promtekhnologiya plant claimed that it had not employed the arrested employee since March 2021.[29] ISW has reported on other recent arrests that are part of an ongoing crackdown using the pretext of threats to Russia's DIB
If you are at war, the war isn't going well, the enemy are getting ever more sophisticated weapons and you are finding it ever more difficult to replace your losses and equip new and resting units with modern equipment. The very last thing you do, is start cracking down on your defence industries.
It would seem to indicate that Putin is clearly putting self preservation first, whatever the cost, even if that cost is in the medium term likely to put him more at risk.