There will be one very important reason. It's to show the half-asleep Republicans which of the RINOs will throw out their civil liberties without a moment's hesitation without Trump there to stop them from doing so.
Mark my words, I've never been more sure in my life that this is the next stage. Especially as the audits near completion and release, and the Deep State attempts to prepare another offensive for the 2022 elections.
No doubt about it, but he had the power to impost martial law, and do what he needed to do, so it wasn't simply a matter of how deep the rot went, but also has much damage it would have cost to cut it out. I don't think he took the option to surrender, but hopefully he had an option to reduce the damage.