The 2nd question is officially answered. I think an enterprising individual (with both plugin & pedal) could mirror most of those presets easily enough.
Speculating somewhat, but I see real advantage to the dedicated FREEZE switch. That puts FREEZE in two locations [switch + variable FEEDBACK positions, including INF & FREEZE]. ACTIVE switch momentary / latching is there. Of course, there’s the standard plugin vs. physical pedal pros & cons.
I’m sure I’m leaving something out here, but this is getting my brain cells burning.
