I don't think that site is going to really be very helpful. The indications are that neonicotinides are implicated in bee deaths. There could be other factors, and it is important that all aspects are properly investigated.
The loss of neonicotinides is going to cause problems for some farmers who have come to rely on them, so saying they can be replaced by something else is not completely true.
I would object to Bayer etc. trying to overturn the ban and sue the EC, but not on those grounds, and certainly not to try to hold the EC to ransom.