If Phil could afford, or was even at the table for, these deals, he'd be doing them in one way or another.
Sony are executing a strategy based around switching dev to pS5 3 years ago, and not spending on co-marketing and other deals in 18/19 (remember MS E3 in 2019 and all the marketing deals on display) so they have the launch year locked down by providing an alternative variation on 'value' - you can get lots of stuff first or only on PS5.
MS have spent the last few years developing & growing a service (GP), introducing lots of value-add stuff on the Xbox platform (BC initiative, no-hassle refunds on digital games), spending on co-marketing deals, and buying studios to feed said GP service, the pipeline for which is still a WiP.
Different approaches, different outcomes.