I think this makes for a (yet another?) good reason why competent, lethal NPCs have their selective places of need in the game. Powerplay conflict zones or similar that scale in difficulty for "payout" regardless of mode would be nice, I think. People still get their apt pew-pew on, get some PVP, if that's what they're after, and get a competent, meaningful challenge, rewarded accordingly regardless of mode.
These are the sort of solutions I would much rather prefer seeing in the game. I don't play in solo to be safe, I play in solo because I play by different, more challenging and apt (in my opinion) standards than what the game allows for. This isn't just a large, frivolous respawn arena for me. That isn't the sort of game I'm particularly interested in playing. Thankfully, solo at least allows me to play by more challenging and meaningful standards within the game universe.