Is this for real?
It's not everyday a company goes private. No longer will investors be able to trade - so they should negotiate for the best price possible. Class Action firms such as Steinmeyer Law do this on behalf of investors, as they have announced on their website.
2% is a good increase, but for long term investors, they might want more. Yes, it's for real.
Disclosure: I/we have no positions in any stocks mentioned, and no plans to initiate any positions within the next 72 hours.