When you're using the crossbar the weight is split between the seat and stem, it's also rubber and I find the cables tend to not be at the point that supports the weight anyway.
Plus hydraulic hose is quite tough, I've not had any issues using one.
For the sake of £20 it's piece of mind. A dropper post is a minimum of £100 up to £400+. Just not worth risking it.
Also it's much easier to balance and position the bike using a false crossbar.
Each to their own though.
I think the standard response to this is for people to state a different argument from the one you're making and then prove it wrong... Despite that not being what is discussed😂
I did/do the same, easier to control a rear slide than a front one so I'm more rear bias. The rear tyre takes a beating when being used as an anchor and on a soft compound it'll wear the rubber down quicker especially if you're on more rocky trails.