Gut feel is that the move isn’t the best one you could take. It may make it seems like you have not bothered to collect the information.
Instead you should mention the bonus – after all it is valid information – but also go into the wagering and playthrough requirements in the review.
Point out how long it will take to play through. That’s correctly presenting information. Not mentioning the bonus at all will put your site at a disadvantage.
And – no – I don’t think signup bonuses will go anytime soon. Just like airmiles or bonus points on credit card spending they are a function that is here ot stay.
Punters expect them – punters will get them – although the practice does seem at odds with real world casinos that offer bonuses to high-rollers and VIPs ?