The bigger idea and pursuit behind "Backhands Optional" is finding ways to become a (more) "complete athlete". What does that mean?
When it comes to tennis for example, that's probably the ability to express all imaginable shots across the whole spectrum.
For example:
slow <=> fast
high <=> low
short <=> deep
flat <=> super-spin
straight <=> angles
... and so on.
Add to that the non-shot elements, i.e.
physical (power, strength, stamina),
tactical (think and apply that whole spectrum), and
mental (not only staying strong at any time but also ability to use other states of mind to our advantage).
Now, in the spirit of "Backhands Optional": add the (from a future perspective maybe obvious?) missing dimension: do everything well and equally well on both sides. When it comes to shots, that's all of them, including all variations, with both hands. Have fun and good luck :P
When it comes to physical, that's probably evening out one-sided weaknesses and building up both sides.
For tactical, that should open up a whole new range of options. When we're there, playing with both hands and all, that may even confuse us at the beginning. But hey, here's another "good" challenge to grow into :)
Mentally, it could put us at ease to have many tools and options to choose from - and worked hard to get there. We'd already have gone far beyond worrying about losing a match (though a win here and there can of course serve as a validation). After all, we're really competing with ourselves.
For the strokes, maybe the most obvious and "hooking" elements, I put a few samples (still in beta-quality) here.