It's important not to blow off a few joules when you're speaking of radiation. The LD50 dose for a 75 kg human is only about 375 J (5 Sv) of gamma rays[1]. In this case, the 5 J delivered inside you (I didn't check your calculations on this, just using your number), and perhaps another 5 on approach and exit, only end up being about 10 J (0.12 Sv), which is not enough to kill, but it is still a rather large radiation dose. It's more than twice the annual limit for occupational safety in the US, and is near the lower limit of the dose that could cause acute radiation syndrome. If the hole passed directly through your digestive tract, concentrating the dose in the vulnerable tissues there, there's a decent chance you'd get mildly sick.

[1] Gamma rays have a weighting factor of 1 in the gray -> Sv calculation, and the black hole emits them isotropically, so they're roughly distributed across the body. So in this case, 1 Gy ~ 1 Sv.

I got 9kW is for 2e17g and it's 35kW for 1e17g. I guess I didn't think about how quickly it grows.

The assumption in the paper was 100km/s which is definitely hyperbolic.

If you slow it down to solar escape velocity at the Earth (the borderline of what you might expect) you get 42km/s which is only a bit slower than in the paper. This would mostly have the effect of doubling your radiation exposure.

Hawking radiation depends on mass of the BH, the smaller the hole the hotter it is.

No, the formula for the power of a black hole's Hawking Radiation is very straightforward, and it only depends on the black hole's mass.

That's nice that you believe that, but your belief is wrong (for sufficiently small black holes)

Black holes emit Hawking radiation regardless of ambient temperature. It's just that right now, the mass(-energy) of photons falling into the hole from the CMBR is outpacing the mass loss to Hawking radiation for large black holes, so large black holes aren't currently evaporating from their own Hawking radiation.

It's like standing next to a campfire. Your body is still emitting thermal radiation in the IR, it's just that you're receiving more thermal radiation from the fire than you're putting out.