2018 Tab 320 Sofitel (Alde)

All,
Any comments / advice appreciated.  I got behind the curve this year and didn't winterize as soon as I normally do.  I thought of doing in two steps on different days.  Day 1: I blew out the lines with compressed air (~45psi) through the water hookup on the left front of the Tab.  I also drained the water tank. (petcock valve just forward of the right wheel.  All good.  I then shut then water drain petcock and filled the water tank with ~3 gal of RV anti-freeze.  I turned on the battery powered water pump and ran the RV antifreeze through the kitchen sink (hot & cold), flushed the toilet well, shower (hot & cold) and the outside water hose / shower.  I then turned on the Alde to heat the inside modestly well above freezing.

Day 2: Today I went through the winterizing procedure with the Alde - drain, change valves from camping to winterize.  All good.  I then ran more RV antifreeze through the system - good flow of RV antifreeze.

QUESTION:  In doing it this way have I compromised the Alde system by running it after my initial blowing out of water and adding RV antifreeze to the water tank?

Any thought appreciated.