Not really. Astra's (and the entire small-launch market's) niche is different than SpaceX's. The focus of small-launch vehicle companies is not cost-per-kg, it's cost-per-launch. The Ride-Share model for large launch vehicles works great, until launch flexibility, short lead times, and unique destination orbits become key customer objectives. Or to put it another way, SpaceX is like the US Postal Service. Small-launch vehicle companies are like FedEx. Small-launch vehicles are the couriers to space.