Ductless Mini Split Proposal + ConEd Rebates (Westchester)

A little background: We bought a house in Westchester and want to do a ductless mini-split w/ hyper heat to supplement a terrible oil forced hot air system. House is an old 1920s colonial with no natural gas runs and due to the ConEd natural gas moratorium in southern Westchester we are, apparantly, eligible for a boatload of rebates. In any event, I have never heard of this program before and am hard pressed to find any info on it. The big consideration, as I understand it, is that the rebates require me to opt in to the utility override on my thermostats. In other words, if ConEd declares a peak energy use period, they can adjust my thermostats without my consent. Anyone in Westchester with experience with this? How does it work with the heating? Will ConEd lower my heat all winter and will I freeze in my own home? Conversely, if I’m sweating my face off in August can I not blast my AC? Here are the proposal details.
Aside from the ConED-specific questions, any thoughts/things I should ask them re: the below proposed config? Thoughts appreciated!

Sale Price $44,820.0 0
Con Edison NYS Clean Heat Rebate $4500 per 10000 BTU of Heating – $32,470.00
Other Incentives -$800.00
Total Investment $11,550.00
The Total Investment is the total cost of the goods and services described in this proposal

Mitsubishi, H2I – Hyper Heat H2I System, 3.50 Ton
Outdoor Unit: MXZ-NAHZ

1x MITSUBISHI MODEL MFZ-KJ18NA-U1 FLOOR MOUNT UNIT in finished attic space/home office

1x Mitsubishi Model MSZ-GL09NA-U1 9,000 in Master Bedroom
2x Mitsubishi Model MSZ-GL06NA-U1 6,000 Btu Wall Mount Unit in Second and Third Bedrooms

1x Mitsubishi Model MSZ-GL24NA-U1 24,000 Btu Wall Mount Unit in Living Room
1x Mitsubishi Model MSZ-GL06NA-U1 6,000 Btu Wall Mount Unit in Den

1-Year labor warranty from installer
2 Year Mitsubishi Diamond Dealer Labor Warranty

Price includes Integrated Controls for Existing Heating System required for NYS ConEd Clean Heat Rebate Program. Controls included PAC-USWHS003-TH-1 Temperature Sensor, PAC-WHS01HC-E Kumo Cloud Main Station, PAC-WHS01IE-E IT Extender