I’m in the Church of the Fast Hybrid, they tend to be built a little taller and less stretched but the whole ride position/concept is different. I’m very stiff through the back and hip due to injuries and I’m just done with drops, it makes far less difference to riding than I thought (tbh if I’d known this I’d have gone flat a long time easlier)
I’ve never done a 200km ride on mine to be fair (not a limitation; I just cannot be bothered to ride for that long on tarmac, life’s too short) and I’d guess that’s where a lack of hand positions becomes more of a thing. I thought I’d miss the drops sometimes but up to the furthest I’ve ridden it it’s just more comfortable for me- it has one very comfy, hours-long riding position, instead of the 3 less comfy riding positions drops always give me.
Obviously it means tucking into a headwind is harder but then I imagine scrunching on the drops is probably worst for you anyway?
OTOH- 54cm sounds small for you?