Clearing Pokerroom bonus in their casino is hardly +EV?

[Beck]

Am I missing something?

According to their homepage, 0,05 point is awarded for every $1 bet in black jack. 7 points is needed for each bonus$, so WR is $140 per $1 in bonus.

With a house advantage of 0.5%, the EV of a $300 bonus is only $90??

(140*300)-0.5%= $90

Yes, it's still a positive figure, but more than 2/3 third of the bonus is gone.