so the plane will tow the rocket beyond the environment? as long as the front doesn't fall off, seems like a good plan

Well, you see Brian, the chances are one in a million.

This plane doesn't look like it can handle bad weather well either.

The idea would be to launch somewhere other than the bad weather. Airplanes can move around to avoid weather. Another advantage would be more flexibility in launch window; the airplane can launch and get high up, then linger into a specific launch timeframe at a specific place, rather than being fixed in place and only changing launch time.

This doesn't make much sense... yes, you can have two fully operational launch sites in different geographical locations but the payload can't be in two places at once. If you have bad weather where the payload is then you won't launch until after is passed.

The plane can take off ahead of the bad weather and go to where weather is predicted to be better. Or, the plane can take off, go to where weather is better, then take off and fly above the troposphere in the original location and launch on time and on place.

If it flies above or away from thunderclouds, then that's handling bad weather that would have otherwise delayed a ground launch.

Why?

It just looks fragile to me. I may be wrong.