certainly everybody is different in how they maintain their bike. I just want to ride my bike and not spend hours cleaning and maintaining it. I rarely do a full wash. I clean the chain and derailleur and crank set. And wipe off big crud. Then maybe 1-2 a year I wash it down.
You make great points! I opted to do a GRX mechanical mullet instead. You’re right…if you’re afraid to ride the bike hard, what’s the point? I might buy a few extra hangers just in case and I can stomach losing a $110 derailleur much easier than a $370 one (and that’s the “cheap” GX AXS option 
)
I broke a Shimano shifter in the past and it was nice knowing that in a pinch I had options. Money aside, if I broke a Force AXS shifter I’d be lucky to find a replacement right now.