In the context of keeping Diamond and comic shops alive, sure. However, Marvel has already begun a viable alternative in the form of Marvel Unlimited. And that's direct subscription without revenue sharing - just costs for software development, server maintenance and bandwidth. A single $10/month Marvel subscriber is probably equivalent revenue to around $20-40/month retail. It's also a lot more efficient than print (in terms of content delivery) and while overhead is high, cost scaling with a very large subscriber base is also much lower than print. Marvel could release periodical comics via Marvel Unlimited first and then collect popular series in graphic novels every 6 issues or something.
Marvel's Top 300 in January 2017 is ~2.9 million units and ~$12 million retail. Assuming 50% goes to retailers and 10% to Diamond, Marvel's revenue is ~$4.8 million (~$4.4 million if factoring free overship). That's equivalent to what, around 500K Marvel Unlimited subscribers?
Marvel's not taking the risk for ASM #25 anyway. They'll still see sales and it will probably rank high on both unit and dollar sales charts. It's the comic shops who'll need to bear the burden for any unsold copies. I expect Marvel's testing the waters right now for how much the market is willing to bear (price elasticity of demand and all that).
But yeah, pricing on American comics kinda sucks considering I'm paying just $7-9 for 200-page manga. Granted, black and white but still...