Well, I think you've brought up a lot of points discussed in length here on EnWorld. I will share my thoughts (as an aside, that font size is horrible for us grognards to read...).
5) Serious Lack of Digital Tools - Frankly, I have ditched the laptop and setup at the game table and banned all electronic devices from the table. last session was fantastic! I think they would be helpful during prep, but the game is not complicated IMHO, so manual prep is somewhat fast.
4) No PDFs (except for the basic game) - See above. Again, it could be useful during prep but I wouldn't use them at the table anyways.
3) Nothing Much to Look Forward To/Lack of Product Diversity - I think there is a lot of whining about the release schedule that is largely unwarranted. Sure, you may want lots of products but the game itself is very playable. Also, your focus may be different. The focus for the company seems to be PLAYING the game. Getting new DMs, finding new players, getting people to the table. I'm sure there will be more support for creating in the future. Instead of worrying about new releases, maybe just focus on running a game?
Also, I believe a lot of OSR stuff plugs right in. Take a look at Adventurer, Conqueror, King or Spears of the Dawn or Arrows of Indra or Vornheim or Lamentations of the Flame Princess or... Lots of stuff can be easily borrowed and touched up to work in 5e.
2) The Waiting. As a publisher you should not be encouraging the childish whinging that hobbyists are prone to. This is squarely a FIRST WORLD problem of the highest (lowest?) order!

Take a deep breath. Go read some OSR material. Make up some fun adventures for a group (FLGS? Youngsters out there looking to get started?). Before you know it, there will be more STUFF for you to buy and stack on your bookshelf.
1) No OGL (or some kind of compatible license). I too worry about this to some extent. However, it's not the first game I've liked and not had a real ability to create for. With the stuff people are doing for the OSR, I don't see why you can just build compatible material using the existing OGL library. You could model the approach of publishers already dipping their toes in the water.
You could also consider making a "house system" and then pointing out the parts in your publications you feel are useful regardless of system. I own a PILE of GURPS books and don't play GURPS. I still use them all the time.
