It is actually paying out in your favor.

That's $28.15 (value in US dollars) split 50/50,half SP and half SBD

One SP is worth about $4.50, so 2.537 SP x 4.5 = $11.41 at current price.

But those SBD are worth even more AND you have more of them 14.075 SDB x $5.50(the current price of SBD) =$77.41

So that reward would be worth $88.82 (USD) at today's prices.

Why does Steemit pay out so much SBD? Probably because it was expected that the SBD would only ever be worth $1 and not $5.51 as it is right now. So you get a nice bonus on one half of the 50/50 pay out.

I hope people know about Steemit's currency market, that's all I'll say about that.