If you can get your company to buy off on contributing to the community then I would go for it. it is always worth the effort to give back a little bit and this would definitely be a good way to get some of your tools out to the public and improved upon by the community.
As far as the cons go, I wouldn't worry too much about the criticism, it can only help you guys improve the next product you deliver and people will respect you from learning from your mistakes, nobody is perfect.
Even if your effort goes unnoticed by your shrinking community, future employees and clients will see that you are contributing outside of the company and may help with your reputation with them.
I think the pros far outweigh the cons on this one.
