Tagging. Will read the whole thing later.
But just from a glance, I would say that for Sony, its Hardware First/Service Last. If this were 5, or even 3 years earlier. You'd have be right. But you seem to be basing your argument off of Sony's actions in the past as opposed to now. Uncharted 4, God of War, Horizon: Zero Dawn, and Spider-Man all became critical and commercial juggernauts. Along with their lesser selling 1st party stuff that were also critically successful like inFamous, Detroit, Gran Turismo Sport, Days Gone, and Ratchet & Clank. Also, the 1st party games they still have coming to close out the PS4's life cycle like Death Stranding and, of course, Last of Us 2, which everyone knows is going to sell megatons. Sony's emphasis and importance on software is leagues above what it was at the beginning of the generation. They're even starting to rival Nintendo's in terms of quality and output. The only things they don't rival Nintendo, as far as 1st party software is concerned, is sales and brand recognition.
Hardware Comparison Threads:
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PlayStation/Xbox/Switch: 2022 Edition
PlayStation/Xbox/Switch Hardware Battle: 2021 Edition!
PlayStation 4/Xbox One/Nintendo Switch: 2019 vs. 2020
PlayStation 4/Xbox One/Nintendo Switch: 2018 vs. 2019
PlayStation 4/Xbox One/Nintendo Switch: 2017 vs. 2018
PlayStation 4: 2015 vs. 2016 vs. 2017